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2024

  1. D. Sakai, T. Yamakawa, H. Ueda, R. Ikeda, T. Miyamoto, and H. Okamoto,
    “Destabilization of spin-Peierls phase via a charge-spin modulated Floquet state induced by intramolecular vibrational excitation”,
    Communications Physics 7, 40:1-10 (2024)

  2. Z. Guo, T. Sato, Y. Han, N. Takamura, R. Ikeda, T. Miyamoto, N. Kida, M. Ogino, Y. Takahashi, N. Kasuya, S. Watanabe, J. Takeya, Q. Wei, M. Mukaida, and H. Okamoto,
    “Band transport evidence in PEDOT:PSS films using broadband optical spectroscopy from terahertz to ultraviolet region”,
    Communications Materials 5, 26:1-13 (2024)

  3. T. Fujino, R. Kameyama, K. Onozuka, K. Matsuo, S. Dekura, T. Miyamoto, Z. Guo, H. Okamoto, T. Nakamura, K. Yoshimi, S. Kitou, T. Arima, H. Sato, K. Yamamoto, A. Takahashi, H. Sawa, Y. Nakamura and H. Mori,
    “Orbital hybridization of donor and acceptor to enhance the conductivity of mixed-stack complexes”,
    Nature Communications 15, 3028:1-13 (2024)

  4. J. Tokimoto, S. Ohmura, A. Takahashi, K. Iwano, and H. Okamoto,
    “Extraction of important degrees of freedom in quantum dynamics using singular value decomposition: Application to linear optical spectrum in two-dimensional Mott insulators”,
    Phys. Rev. B 109, 195150:1-14 (2024)

  5. R. Namba, K. Imamura, R. Ishioka, K. Ishihara, T. Miyamoto, H. Okamoto, Y. Shimizu, Y. Saito, Y. Agarmani, M. Lang, H. Murayama, Y. Xing, S. Suetsugu, Y. Kasahara, Y. Matsuda, K. Hashimoto, and T. Shibauch,
    “Two-step growth of high-quality single crystals of the Kitaev magnet α−RuCl 3”,
    Phys. Rev. Materials 8, 074404:1-8 (2024)

  6. N. Takamura, T. Miyamoto, R. Ikeda, T. Kubo, M. Yamamoto, H. Sato, Y. Han, T. Ito, T. Sato, A. Nakano, H. Sawa, and H. Okamoto,
    “Melting of excitonic insulator phase by an intense terahertz pulse in Ta2NiSe5”,
    arXiv 2309 , 05286:1-66 (2023)

　

2023

  1. N. Takamura, T. Miyamoto, S. Liang, K. Asada, T. Terashige, Y. Takahashi, T. Hasegawa, and H. Okamoto,
    “Efficient Mott insulator-metal transition by an intense terahertz electric field pulse via quantum tunneling”,
    Phys. Rev. B 107, 085147:1-14 (2023)

  2. R. Takehara, H. Adachi, K. Sunami, K. Miyagawa, T. Miyamoto, H. Okamoto, S. Horiuchi, and K. Kanoda, "Experimental Verification of Charge Soliton Excitations in the Ionic Mott-Peierls Ferroelectric, TTF-CA",
    Phys. Rev. B 107, 125164:1-6 (2023)

  3. K. Onozuka, T. Fujino, R. Kameyama, S. Dekura, K. Yoshimi, T. Nakamura, T. Miyamoto, T. Yamakawa, H. Okamoto, H. Sato, T. Ozaki, and H. Mori, "Metallic State of a Mixed-Sequence Oligomer Salt That Models Doped PEDOT Family",
    J. Am. Chem. Soc. 145, 28, 15152-15161(2023)

  4. H. Okamoto, "Different Time Characteristics of Conduction and Valence Bands in a Photo-Excited Excitonic Insulator",
    JPSJ News and Comments 20, 08 (2023)

  5. T. Yamakawa, T. Miyamoto, D. Sakai and H. Okamoto, "Dynamical aspects of excitonic Floquet states generated by a phase locked mid-infrared pulse in a one-dimensional Mott insulator",
    New J. Phys. 25, 093044:1-20 (2023)

  6. T. Miyamoto , A. Kondo, T. Inaba, T. Morimoto, S. You and H. Okamoto, "Terahertz radiation by quantum interference of excitons in a one-dimensional Mott insulator",
    Nature Communications 14, 6229:1-11 (2023)

  7. K. Arakawa, T. Hayashida, K. Kimura, R. Misawa, T. Nagai, T. Miyamoto, H. Okamoto, F. Iga, and T. Kimura, "Detecting Magnetoelectric Effect in a Metallic Antiferromagnet via Nonreciprocal Rotation of Reflected Light",
    Phys. Rev. Lett. 131, 236702:1-6(2023)

その他論文・著書　others

  1. 岡本博, "強相関電子系の超高速光誘起相転移", 物性若手夏の学校テキスト　Vol.1,176-187 (2023)

　　　　

2022

  1. T. Miyamoto, M. Mizui, N. Takamura, J. Hirata, H. Yamakawa, T. Morimoto, T. Terashige, N. Kida, A. Nakano, H. Sawa and H. Okamoto,
    "Charge and lattice dynamics in excitonic insulator Ta2NiSe5 investigated using ultrafast reflection spectroscopy",
    J. Phys. Soc. Jpn. 91, 023701:1-5 (2022)

  2. Y. Han, T. Miyamoto, T. Otaki, N. Takamura, N. Kida, N. Osakabe, J. Tsurumi, S. Watanabe, T. Okamoto, J. Takeya and H. Okamoto,
    "Scattering mechanism of hole carriers in organic molecular semiconductors deduced from analyses of terahertz absorption spectra using Drude-Anderson model",
    Appl. Phys. Lett. 120, 053302:1-7 (2022)

  3. N. Sono, T. Otaki, T. Kitao, T.Yamakawa, D. Sakai, T. Morimoto, T. Miyamoto and H. Okamoto,
    "Phonon-dressed states in an organic Mott insulator",
    Communications Physics 5,72:1-9 (2022)

  4. K. Sunami, R. Takehara, K. Miyagawa, H. Okamoto and K. Kanoda,
    "Topological Excitations in Neutral–Ionic Transition Systems",
    Symmetry 14, 925:1-27 (2022)

  5. R. Kameyama, T. Fujino, S. Dekura, S. Imajo, T. Miyamoto, H. Okamoto and H. Mori,
    "Band-filling effects in single-crystalline oligomer models for doped PEDOT: 3,4-ethylenedioxythiophene (EDOT) dimer salt with hydrogen-bonded infinite sulfate anion chains",
    J. Mater. Chem. C 10, 7543–7551 (2022)

  6. M. Wakizaka, M. R. Mian, T. Yoshida, T. Sato, H. Tanaka, T. Miyamoto, H. Okamoto, S. Takaishi, H. Iguchi, and M. Yamashita,
    "Ni(III) Mott–Hubbard-like State Containing High-Spin Ni(II) in a Semiconductive Bromide-Bridged Ni-Chain Compound",
    Inorg. Chem. 2022, 61, 9504-9513 (2022)

  7. K. Iwano and H. Okamoto,
    "Magnetically bound nature of a holon-doublon pair in two-dimensional photoexcited Mott insulators",
    Phys. Rev. B 106, 075128:1-10 (2022)

  8. T. Yamaguchi , K. Iwano , and H. Okamoto,
    "Photoinduced Drude weights critically enhanced by charge fluctuations in a one-dimensional Mott insulator",
    Phys. Rev. B 106, L081119:1-6 (2022)

  9. T. Yoshida, S. Takaishi, L. Guerin, T. Kojima, H. Ohtsu, M. Kawano, T. Miyamoto, H. Okamoto, K. Kato, M. Takata, Y. Hosomi, S. Yoshida, H. Shigekawa, H. Tanaka, S.Kuroda, H. Iguchi, B. K. Breedlove, Z. Li, M. Yamashita,
    "Hydrogen Bonding Propagated Phase Separation in Quasi-Epitaxial Single Crystals: A Pd−Br Molecular Insulator",
    Inorg. Chem.61, 14067-14074 (2022)

  10. Y. Kinoshita, H. Yamakawa, T. Miyamoto, K. Yamamoto, H. Mori, H. Okamoto, and N. Kida,
    "Terahertz Radiation with Multi-Narrowband Components via Photoinduced Melting of Charge Order in an Electronic-Type Ferroelectric Organic α-(BEDT-TTF)2I3",
    J. Phys. Soc. Jpn. 91, 094705:1-10 (2022)

  11. N. Kida, T. Miyamoto, and H. Okamoto,
    "Emission of terahertz electromagnetic waves: A new spectroscopic method to investigate physical properties of solids",
    J. Phys. Soc. Jpn. 91,112001:1-21 (2022)(Invited paper)

その他論文・著書　others

  1. 山口辰威, 岩野薫, 大村周, 高橋聡，宮本辰也，岡本博, "多体ワニア関数を用いた1次元モット絶縁体の光学スペクトルの新しい計算手法", 固体物理 第57巻 第9号,519-534（2022）

2021

  1. T. Yamaguchi, K. Iwano, T. Miyamoto, N. Takamura, N. Kida, Y. Takahashi, T. Hasegawa, and H. Okamoto,
    "Excitonic optical spectra and energy structures in a one-dimensional Mott insulator demonstrated by applying a many-body Wannier functions method to a charge model",
    Phys. Rev. B 103, 045124:1-15 (2021)

  2. N. Sono, Y. Kinoshita, N. Kida, T. Ito, H. Okamoto, and T. Miyamoto,
    "Terahertz-field-induced Changes of Electoronic States Associated with a Polarzation Modulation in BiFeO3",
    J. Phys. Soc. Jpn. 90, 033703:1-5(2021)

  3. H. Yamakawa, T. Miyamoto, T. Morimoto, N. Takamura, S. Liang, H. Yoshimochi,
    T. Terashige, N. Kida, M. Suda, H. M. Yamamoto, H. Mori, K. Miyagawa, K. Kanoda,
    and　H. Okamoto,
    "Terahertz-field-induced polar charge order in electronic-type dielectrics",
    Nature Communications 12, 953:1-11(2021) 　
    Featured in Focus at Nature Communications

  4. K. Sunami , R. Takehara , A. Katougi, K. Miyagawa , S. Horiuchi , R. Kato , T. Miyamoto,
    H. Okamoto , and K. Kanoda ,
    "Fate of soliton matter upon symmetry-breaking ferroelectric order",
    Phys. Rev. B 103,134112:1-8 (2021)

  5. T. Kubo, Y. Suga, D. Hashizume, H. Suzuki, T. Miyamoto, H. Okamoto, R. Kishi, and M. Nakano,
    "Long Carbon–Carbon Bonding beyond 2 Å in Tris(9-fluorenylidene)methane",
    J. Am. Chem. Soc. 143, 35:14360–14366 (2021)

  6. K. Asada, T. Miyamoto, H. Yamakawa, J. Hirata, N. Takamura, T. Morimoto, K. Suzuki, T. Otaki, N. Kida, T. Nakamura, and H. Okamoto,
    "Ultrafast control of electronic states by a terahertz electric field pulse in the quasi-one-dimensional organic ferroelectric (TMTTF)2PF6",
    Phys. Rev. B 104, 195148:1-14(2021)

  7. T. Morimoto, H. Suzuki, T. Otaki, N. Sono, N. Kida, T. Miyamoto, and H. Okamoto,
    "Ionic to neutral conversion induced by resonant excitation of molecular vibrations coupled to intermolecular charge transfer",
    Phys. Rev. Research 3, L042028:1-7(2021)

その他論文・著書　others

  1. 宮本辰也, 大瀧貴史, 貴田徳明, 岡本博, "有機半導体におけるキャリアダイナミクスの先端分光計測", 計測と制御 VOL.60, No.3, 176-181 (2021)

  2. 貴田徳明, 木下雄斗，岡本博, "テラヘルツ波放射を利用した新しい分極ベクトル決定法", セラミックス Voｌ. 56, No. 7, 176-181 (2021)

2020

  1. T. Yamakawa, N. Sono, T. Kitao,T. Morimoto, N. Kida, T. Miyamoto, and H. Okamoto,
    "Long-term stabilization of carrier envelope phases of mid-infrared pulses for the precise detection of phase-sensitive responses to electromagnetic waves",
    AIP Advances 10, 025311:1-7 (2020)

  2. Y. Kinoshita, N. Kida, Y. Magasaki, T. Morimoto, T. Terashige, T. Miyamoto, and H. Okamoto,
    "Strong Terahertz Radiation via Rapid Polarization Reduction in Photoinduced Ionic-To-Neutral Transition in Tetrathiafulvalene-p-Chloranil",
    Phys. Rev. Lett. 124, 057402:1-6 (2020)

  3. T. Hiraki, K. Nakahara, K. Narumi, R. Niiyama, N. Kida, N. Takamura, H. Okamoto, and Y. Kawahara,
    "Laser Pouch Motors: Selective and Wireless Activation of Soft Actuators by Laser-powered Liquid-to-gas Phase Change",
    IEEE Robotics and Automation Letters 5, 3:4180-4187 (2020)

  4. M. R. Mian, U. Afrin, H. Iguchi, S. Takaishi, T. Yoshida, T. Miyamoto, H. Okamoto, H. Tanaka, S. Kurodae and M. Yamashita,
    "Conductive zigzag Pd(III)–Br chain complex realized by multiplehydrogen-bond approach",
    CrystEngComm 22, 3999-4004 (2020)

  5. Y. Kinoshita, M. Sotome, T. Miyamoto, Y. Uemura, S. Arai, S. Horiuchi, T. Hasegawa, H. Okamoto, and N. Kida,
    "Observation of the Three-Dimensional Polarization Vector in Films of Organic Molecular Ferroelectrics Using Terahertz Radiation Emission"
    Phys. Rev. Applied 14, 054002：1-8(2020)

  6. T. Otaki, T. Terashige, J. Tsurumi, T. Miyamoto, N. Kida, S. Watanabe, T. Okamoto, J. Takeya, and H. Okamoto,
    "Evaluations of nonlocal electron-phonon couplings in tetracene, rubrene and C10-DNBDT-NW based on density functional theory",
    Phys. Rev. B 102, 245201:1-17 (2020)

  7. K. Iwano, T. Yamaguchi, and H. Okamoto,
    "Ultrabosonic behavior in photoexcited one-dimensional Mott insulators in the region of weak intersite Coulombic interaction",
    Phys. Rev. B 102, 245114:1-10 (2020)

  8. M. R. Mian, M. Wakizaka, T. Yoshida, H. Iguchi , S. Takaishi , U. Afrin , T. Miyamoto, H. Okamoto, H. Tanaka, S. Kuroda, Brian. K. Breedlove and M. Yamashita,
    "Unusual Pd(III) oxidation state in Pd-Cl chain complex with highly thermal stability and electrical conductivity",
    Dalton Transactions 50,1614-1619 (2020)

2019

  1. T. Ishii, H. Yamakawa, T. Kanaki, T. Miyamoto, N. Kida, H. Okamoto, M. Tanaka, and S. Ohya,
    "Large terahertz magnetization response observed in ferromagnetic nanoparticles",
    Appl. Phys. Lett. 114, 062402:1-4 (2019)

  2. A. Ueda , K. Kishimoto, Y. Sunairi, J. Yoshida, H. Yamakawa, T. Miyamoto, T. Terashige, H. Okamoto , and H. Mori ,
    "Hysteretic Current–Voltage Characteristics in the Deuterium-Dynamics-Triggered Charge-Ordered Phase of κ-D3(Cat-EDT-TTF)2" ,
    J. Phys. Soc. Jpn. 88, 034710:1-6 (2019)

  3. U. Afrin, H. Iguchi, Mohammad Rasel Mian, S. Takaishi, H. Yamakawa, T. Terashige, T. Miyamoto, H. Okamoto and M. Yamashita ,
    "MX-type single chain complexes with aromatic in-plane ligand: incorporation of aromatic interactions for stabilizing chain structure " ,
    Dalton Transactions 48, 7828-7834 (2019)

  4. T. Yamaguchi, K. Asada, H. Yamakawa, T. Miyamoto, K. Iwano, T. Nakamura, N. Kida, and H. Okamoto,
    "Photoexcitation of a one-dimensional polarization-inverted domain from the charge-ordered ferroelectric ground state of (TMTTF)2PF6" ,
    Phys. Rev. B 99, 245104:1-10 (2019)

  5. T. Terashige, T. Ono, T. Miyamoto, T. Morimoto, H. Yamakawa, N. Kida, T. Ito, T. Sasagawa, T. Tohyama, H. Okamoto,
    "Doublon-holon pairing mechanism via exchange interaction in two-dimensional cuprate Mott insulators" ,
    Science Advances 5, eaav2187:1-8 (2019)

  6. H. Yada, H. Sekine, T. Miyamoto, T. Terashige, R. Uchida, T. Otaki, F. Maruike, N. Kida, T. Uemura, S. Watanabe, T. Okamoto, J. Takeya, and H. Okamoto,
    "Evaluating intrinsic mobility from transient terahertz conductivity spectra of microcrystal samples of organic molecular semiconductors" ,
    Appl. Phys. Lett. 115, 143301:1-5 (2019)

  7. T. Miyamoto, T. Kakizaki, T. Terashige, D. Hata, H. Yamakawa, T. Morimoto, N. Takamura, H. Yada, Y. Takahashi, T. Hasegawa, H. Matsuzaki, T. Tohyama, and H. Okamoto,
    "Biexciton in one-dimensional Mott insulators",
    Communications Physics 2, 131:1-9 (2019)

  8. R. Takehara, K. Sunami, K. Miyagawa, T. Miyamoto, H. Okamoto, S. Horiuchi, R. Kato and K. Kanoda,
    "Topological charge transport by mobile dielectric-ferroelectric domain walls" ,
    Science Advances 5, eaax8720:1-7 (2019)

  9. S. Watanabe, M. Ohno, Y. Yamashita, T. Terashige, H. Okamoto, and J. Takeya,
    "Validity of the Mott formula and the origin of thermopower in π-conjugated semicrystalline polymers" ,
    Phys. Rev. B 100, 241201(R):1-6 (2019)

  10. S. Ohmura, A. Takahashi, K. Iwano, T. Yamaguchi, K. Shinjo, T. Tohyama, S. Sota, and H. Okamoto,
    "Effective model of one-dimensional extended Hubbard systems: Application to linear optical spectrum calculations in large systems based on many-body Wannier functions" ,
    Phys. Rev. B 100, 235134:1-15 (2019)

その他論文・著書　others

  1. 山川大路, 宮本辰也, 岡本博, "テラヘルツパルス光による超高速絶縁体-金属転移", 応用物理学会誌vol.88, No.2, 105-109 (2019)

  2. 岡本博, "テラヘルツ電場パルスで起こす超高速絶縁体-金属転移", 分子研レターズ vol.79, 29-30（2019）

  3. 岡本博, "光や電場で起こす超高速絶縁体-金属スイッチング", パリティ vol.34, No.05, 36-41（2019）

  4. 貴田徳明, 宮本辰也, 岡本博, "フェルト秒レーザーパルス励起によるテラヘルツ波放射とその物性研究への応用", 日本物理学会誌 vol.74, No.5, 314-324（2019）

  5. 宮本辰也, 石原純夫, 岡本博, "銅酸化物モット絶縁体の光励起状態における超高速スピン緩和とマグノン歳差運動の観測", 固体物理 第５４巻 第９号, 459-473（2019）

  6. 島野亮，森本剛史，岡本博，"テラヘルツ・赤外パルスによるサブサイクル分光"， 固体物理 第５４巻 第１１号，541-552（2019）

  7. 岡本博，遠山貴巳，"テラヘルツパルスによるモット絶縁体の非線形光学応答と相転移"， 固体物理 第５４巻 第１１号，601-622（2019）

  8. 宮本辰也，高橋聡，"テラヘルツパルスによる電子型誘電体の超高速分極制御とその機構の解明"， 固体物理 第５４巻 第１１号，649-671（2019）

2018

  1. M. R. Mian,H. Iguchi, M. Miyata, S. Takaishi, H. Yamakawa,T. Terashige, T. Miyamoto,H. Okamoto,and M. Yamashita,
    "Structural Study of Bromide-Bridged Pd Chain Complex with Weak CH···O Hydrogen Bonds",
    Zeitschrift für anorganische und allgemeine Chemie 644, 646-651 (2018)

  2. Y. Kinoshita, N. Kida, T. Miyamoto, M. Kanou, T. Sasagawa, and H. Okamoto,
    "Terahertz radiation by subpicosecond spin-polarized photocurrent originating from Dirac electrons in a Rashba-type polar semiconductor"
    Phys. Rev. B 97, 161104(R):1-5 (2018)

  3. T. Ishii, H. Yamakawa, T. Kanaki, T. Miyamoto, N. Kida, H. Okamoto, M. Tanaka & S. Ohya,
    "Ultrafast magnetization modulation induced by the electric field component of a terahertz pulse in a ferromagnetic-semiconductor thin film",
    Scientific Reports 8, 6901: 1-6 (2018)

  4. T. Miyamoto, H. Yamakawa, T. Morimoto, and H.Okamoto,
    "Control of electronic states by a nearly monocyclic terahertz electric-field pulse in organic correlated electron materials",
    J. Phys. B: At. Mol. Opt. Phys 51, 162001:1-32(2018)

  5. M. Sotome, N. Kida, S. Horiuchi, and H. Okamoto,
    "Narrowband terahertz radiation by impulsive stimulated Raman scattering in an above-room-temperature organic ferroelectric benzimidazole",
    Phys. Rev. A 98, 013843:1-9 (2018)

  6. R.Takehara, K.Sunami, F.Iwase, M.Hosoda, K.Miyagawa, T.Miyamoto, H.Okamoto, and K.Kanoda,
    "Revisited phase diagram on charge instability and lattice symmetry breaking in the organic ferroelectric TTF-QCl4",
    Phys. Rev. B 98, 054103:1-7 (2018)

  7. T. Miyamoto, Y. Matsui, T. Terashige, T. Morimoto, N. Sono, H. Yada, S. Ishihara, Y. Watanabe, S. Adachi, T. Ito, K. Oka, A. Sawa & H. Okamoto,
    "Probing ultrafast spin-relaxation and precession dynamics in a cuprate Mott insulator with sevenfemtosecond optical pulses",
    Nature Communications 9, 3948:1-7(2018)

  8. T. Miyamoto, D. Hata, T. Morimoto, H. Yamakawa, N. Kida, T. Terashige, K. Iwano, H. Kishida, S. Horiuchi, and H. Okamoto,
    "Ultrafast polarization control by terahertz fields via π-electron wavefunction changes in hydrogen-bonded molecular ferroelectrics",
    Scientific Reports 8, 15014:1-8 (2018)

  9. K. Sunami, T. Nishikawa, K. Miyagawa, S. Horiuchi, R. Kato, T. Miyamoto, H. Okamoto and K. Kanoda,
    "Evidence for solitonic spin excitations from a charge-lattice–coupled ferroelectric order",
    Science Advances 4, 7725:1-6(2018)

  10. M. Rasel Mian, H. Iguchi , S. Takaishi , U. Afrin, T. Miyamoto, H. Okamoto, and M. Yamashita,
    "Smallest Optical Gap for Pt(II)–Pt(IV) Mixed-Valence Pt–Cl and Pt–Br Chain Complexes Achieved by Using a Multiple-Hydrogen-Bond Approach"
    Inorg. Chem. 2019, 58, 114-120(2018)

2017

  1. T. Morimoto, T. Miyamoto, H. Yamakawa, T. Terashige, T. Ono, N. Kida, and H. Okamoto,
    "Terahertz-Field-Induced Large Macroscopic Polarization and Domain-Wall Dynamics in an Organic Molecular Dielectric",
    Phys. Rev. Lett. 118, 107602:1-6 (2017)

  2. K. Iwano, Y. Shimoi, T. Miyamoto, D. Hata, M. Sotome, N. Kida, S. Horiuchi, and H. Okamoto,
    "Ultrafast photoinduced electric-polarization switching in a hydrogen-bonded ferroelectric crystal",
    Phys. Rev. Lett. 118, 107404:1-5 (2017)

  3. M. R. Mian, H. Iguchi, S. Takaishi, H. Murasugi, T. Miyamoto, H. Okamoto, H. Tanaka, S. Kuroda, B. K. Breedlove, and M. Yamashita,
    "Multiple-Hydrogen-Bond Approach to Uncommon Pd(III) Oxidation State: A Pd-Br Chain with High Conductivity and Thermal Stability ",
    J. Am. Chem. Soc. 139, 6562-6565 (2017)

  4. T. Morimoto, T. Miyamoto, and H. Okamoto,
    "Ultrafast electron and molecular dynamics in photoinduced and electric-field-induced neutral-ionic transitions",
    Crystals 7, 132:1-41 (2017)

  5. M. Sotome, N. Kida, Y. Kinoshita, H. Yamakawa, T. Miyamoto, H. Mori, and H. Okamoto,
    "Visualization of a nonlinear conducting path in an organic molecular ferroelectric by using emission of terahertz radiation",
    Phys. Rev. B 95, 241102:1-5 (2017)

  6. Y. Ikabata, Q. Wang, T. Yoshikawa, A. Ueda, T. Murata, K. Kariyazono, M. Moriguchi, H. Okamoto, Y. Morita, and H. Nakai,
    "Near-infrared absorption of π-stacking columns composed of trioxotriangulene neutral radicals",
    Quantum Materials 2, 27:1-7 (2017)

  7. H. Yamakawa,　T. Miyamoto,　T. Morimoto,　T. Terashige,　H. Yada,　N.　Kida,　M. Suda,　H.M. Yamamoto, R. Kato,　K. Miyagawa,　K. Kanoda　and　H. Okamoto,
    "Mott transition by an impulsive dielectric breakdown",
    Nature Materials 16, 1100-1105(2017)

  8. T.Morimoto, N.Sono, T.Miyamoto, N.Kida, and H.Okamoto,
    "Generation of a carrier-envelope-phase-stable femtosecond pulse at 10µm by direct down-conversion from a Ti:sapphire laser pulse",
    Applied Physics Express 10, 122701:1-4(2017)

2016

  1. H. Yamakawa, T. Miyamoto, T. Morimoto, H. Yada, Y. Kinoshita, M. Sotome, N. Kida, K. Yamamoto, K. Iwano, Y. Matsumoto, S. Watanabe, Y. Shimoi, M. Suda, H. M. Yamamoto, H. Mori, and H. Okamoto,
    "Novel electronic ferroelectricity in an organic charge-order insulator investigated with terahertz-pump optical-probe spectroscopy",
    Scientific Reports 6, 20571:1-10 (2016)

  2. T, Yoshida, S, Takaishi, H, Iguchi, H. Okamoto, H, Tanaka, S. Kuroda, Y. Hosomi, S. Yoshida, H. Shigekawa, T. Kojima, H. Ohtsu, M. Kawano, B. K. Breedlove, L. Guerin, and M. Yamashita,
    "Optically Visible Phase Separation between Mott-Hubbard and Charge-Density-Wave Domains in a Pd-Br Chain Complex",
    ChemistrySelect 2, 259-263 (2016)

  3. H. Yada, Y. Ijiri, H. Uemura, Y. Tomioka, and H. Okamoto,
    "Enhancement of photoinduced charge-order melting via anisotropy control by double-pulse excitation in perovskite manganites: Pr0.6Ca0.4MnO3",
    Phys. Rev. Lett. 116, 076402:1-5 (2016)

  4. Y. Kinoshita, N. Kida, M. Sotome, T. Miyamoto, Y. Iguchi, Y. Onose, and H. Okamoto,
    "Terahertz Radiation by Subpicosecond Magnetization Modulation in the Ferrimagnet LiFe5O8",
    ACS Photonics 3, 1170-1175 (2016)

  5. Y. Matsui, T. Terashige, R. Uchida, T. Miyamoto, H. Yada, H. Matsuzaki, B. -S. Li, A. Sawa, and H. Okamoto,
    "Intrinsic carrier scattering mechanism in anatase TiO2 investigated by ultraviolet-pump terahertz-probe spectroscopy",
    Phys. Rev. B 94, 041113(R):1-5 (2016)

その他論文・著書　others

  1. 松崎弘幸, 岩野薫, 岡本博, "励起光波長の選択によってモット絶縁体を金属と電荷密度波に転換する～相関電子系の新しい光相制御～", 日本物理学会誌vol.71, No.5, 311-317 (2016)

2015

  1. H. Matsuzaki, H. Nishioka, H. Uemura, A. Sawa, S. Sota, T. Tohyama, and H. Okamoto,
    "Ultrafast Charge and Lattice Dynamics in One-dimensional Mott insulator of CuO-chain Compound Ca2CuO3 Investigated by Femtosecond Absorption Spectroscopy",
    Phys. Rev. B 91, 081114(R):1-5 (2015)

  2. R. Takehara, K. Miyagawa, K. Kanoda, T. Miyamoto, H. Matsuzaki, H. Okamoto, H. Taniguchi, K. Matsubayashi, Y. Uwatoko,
    "Electron transport in TTF-CA under High pressures",
    Physica B 460, 83-87 (2015)

  3. H. Uemura, K. Iwasawa, H. Yamakawa, T. Miyamoto, H. Yada, and H. Okamoto,
    "Photoinduced complete melting of spin-Peierls phase in Na-tetracyanoquinodimethane revealed by frequency doubling of coherent molecular oscillations",
    Phys. Rev. B 91, 125111:1-6 (2015)

  4. B.-S. Li, Y. Matsui, T. Miyamoto, H. Yada, A. Sawa, and H. Okamoto,
    "Epitaxial growthofhighqualityLa2CuO4 film onLaSrAlO4 substrate with introduction of ultrathin amorphous layer of La2CuO4",
    Journal of Crystal Growth 425, 230-233 (2015)

  5. S. Yokokura, Y. Takahashi, H. Nonaka, H. Hasegawa, J. Harada, T. Inabe, R. Kumai, H. Okamoto, M. M. Matsushita, and K. Awaga,
    "Switching of Transfer Characteristics of an Organic Field-Effect Transistor by Phase Transitions: Sensitive Response to Molecular Dynamics and Charge Fluctuation",
    Chem. Mater. 27, 4441-4449 (2015)

  6. T. Terashige, H. Yada, Y. Matsui, T. Miyamoto, N. Kida, and H. Okamoto,
    "Temperature and carrier-density dependence of electron-hole scattering in silicon investigated by optical-pump terahertz-probe spectroscopy",
    Phys. Rev. B 91, 241201(R):1-5 (2015)

  7. H. Matsuzaki, M. Ohkura, Y. Ishige, Y. Nogami, and H. Okamoto,
    "Photoinduced Switching to Metallic States in the Two-Dimensional Organic Mott Insulator Dimethylphenazine-Tetrafluorotetracyanoquinodimethane with Anisotropic Molecular Stacks",
    Phys. Rev. B 91, 245140:1-10 (2015)

  8. M. Sotome, N. Kida, S. Horiuchi, and H. Okamoto,
    "Terahertz radiation imaging of ferroelectric domain topography in room-temperature hydrogen-bonded supramolecular ferroelectrics",
    ACS Photonics 2, 1373-1383 (2015)

  9. R. Takehara, K. Miyagawa, T. Miyamoto, H. Okamoto, H. Taniguchi, K. Matsubayashi, Y. Uwatoko, and K. Kanoda,
    "Electrical Transport in the Quasi-Two-Dimensional Ionic Mott Insulator M2P-TCNQF4 under High Pressures",
    J. Phys. Soc. Jpn. 84, 104702:1-5 (2015)

  10. R. Takeda, N. Kida, M. Sotome, H. Okamoto,
    "Elliptically polarized terahertz radiation from a chiral oxide",
    Appl. Phys. Lett. 107, 131114:1-5 (2015)

  11. R. Singla, G. Cotugno, S. Kaiser, M. Forst, M. Mitrano, H.Y. Liu, A. Cartella, C. Manzoni, H. Okamoto, T. Hasegawa, S.R. Clark, D. Jaksch, and A. Cavalleri,
    "THz-Frequency Modulation of the Hubbard U in an Organic Mott Insulator",
    Phys. Rev. Lett. 115, 187401:1-6 (2015)

その他論文・著書　others

  1. 岡本博, "光誘起相転移と超高速光応答",「分子性物質の物理－物性物理の新潮流－」, 8章, 166－196, 朝倉書店 (2015)

2014

  1. S. Kaiser, S. R. Clark, D. Nicoletti, G. Cotugno, R. I. Tobey, N. Dean, S. Lupi, H. Okamoto, T. Hasegawa, D. Jaksch, and A. Cavalleri,
    "Optical Properties of a Vibrationally Modulated Solid State Mott Insulator",
    Scientific Reports 4, 3823:1-6 (2014)

  2. H. Matsuzaki, Y. Matsui, R. Uchida, H. Yada, T. Terashige, B.-S. Li, A. Sawa, M. Kawasaki, Y. Tokura, and H. Okamoto,
    "Photocarrier dynamics in anatase Tio2 investigated by pump-probe absorption spectroscopy",
    J. Appl. Phys. 115, 053514:1-8 (2014)

  3. M. Mitrano, G. Cotugno, S. R. Clark, R. Singla, S. Kaiser, J. Stahler, R. Beyer, M. Dressel, L. Baldassarre, D. Nicoletti, A. Perucchi, T. Hasegawa, H. Okamoto, D. Jaksch, and A. Cavalleri,
    "Pressure-Dependent Relaxation in the Photoexcited Mott Insulator ET-F2TCNQ: Influence of Hopping and Correlations on Quasiparticle Recombination Rates ",
    Phys. Rev. Lett. 112, 117801:1-5 (2014)

  4. R. Takeda, N. Kida, M. Sotome, Y. Matsui, and H. Okamoto,
    "Circularly polarized narrowband terahertz radiation from a eulytite oxide by a pair of femtosecond laser pulses",
    Phys. Rev. A 89, 033832:1-10 (2014)

  5. T. Matsumoto, G. N. Newton, T. Shiga, S. Hayami, Y. Matsui, H. Okamoto, R. Kumai, Y. Murakami, and H. Oshio,
    "Programmable spin-state switching in a mixed-valence spin-crossover iron grid",
    Nat. Commun. 5, 3865:1-8 (2014)

  6. S. Kumagai, S. Takaishi, B. K. Breedlove, H. Okamoto, H. Tanaka, S. Kurodac, and M. Yamashita,
    "Bromide-bridged palladium(III) chain complexes Q1 showing charge bistability near room temperature",
    Chem. Commun. 50, 8382-8384 (2014)

  7. M. Sotome, N. Kida, S. Horiuchi, and H. Okamoto,
    "Visualization of ferroelectric domains in a hydrogen-bonded molecular crystal using emission of terahertz radiation",
    Appl. Phys. Lett. 105, 041101:1-5 (2014)

  8. H. Matsuzaki, M. Iwata, T. Miyamoto, T. Terashige, K. Iwano, S. Takaishi, M. Takamura, S. Kumagai, M. Yamashita, R. Takahashi, Y. Wakabayashi, and H. Okamoto,
    "Excitation-Photon-Energy Selectivity of Photoconversions in Halogen-Bridged Pd-Chain Compounds: Mott Insulator to Metal or Charge-Density-Wave State",
    Phys. Rev. lett. 113, 096403:1-6 (2014)

  9. W. Guan, N. Kida, M. Sotome, Y. Kinoshita, R. Takeda, A. Inoue, S. Horiuchi, and H. Okamoto,
    "Terahertz radiation by optical rectification in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenylmalondialdehyde",
    Jpn. J. Appl. Phys. 53, 09PD07:1-5 (2014)

  10. Y. Kinoshita, N. Kida, M. Sotome, R. Takeda, N. Abe, M. Saito, T. Arima, and H. Okamoto,
    "Visualization of ferroelectric domains in boracite using emission of terahertz radiation",
    Jpn. J. Appl. Phys. 53, 09PD08:1-5 (2014)

  11. M. Sotome, N. Kida, R. Takeda, and H. Okamoto,
    "Terahertz radiation induced by coherent phonon generation via impulsive stimulated Raman scattering in paratellurite",
    Phys. Rev. A 90, 033842:1-15 (2014)

  12. H. Yada, R. Uchida, H. Sekine, T. Terashige, S. Tao, Y. Matsui, N. Kida, S. Fratini, S. Ciuchi, Y. Okada, T. Uemura, J. Takeya, and H. Okamoto,
    "Carrier dynamics of rubrene single-crystals revealed by transient broadband terahertz spectroscopy",
    Appl. Phys. Lett. 105, 143302:1-5 (2014)

  13. S. Kumagai, H. Iguchi, S. Takaishi, B. K. Breedlove, M. Yamashita, H. Matsuzaki, H. Okamoto, K. Kato, and M. Takata,
    "Continuous Control of Optical Gaps in Quasi-One-Dimensional Bromide-Bridged Platinum Complexes by Utilizing Chemical Pressure",
    Inorg. Chem. 53, 11764-11769 (2014)

その他論文・著書　others

  1. 岡本博, 宮本辰也, 山川大路, 矢田祐之, "テラヘルツ・光パルスによる電子型誘電体の超高速分極制御", 固体物理　第49巻 第4号, 279-298 (2014)

2013

  1. K. Kamada, S. Fuku-en, S. Minamide, K. Ohta, R. Kishi, M. Nakano, H. Matsuzaki, H. Okamoto, H. Higashikawa, K. Inoue, S. Kojima, and Y. Yamamoto,
    "Impact of Diradical Character on Two-Photon Absorption: Bis(acridine) Dimers Synthesized from an Allenic Precursor ",
    J. Am. Chem. Soc. 135, 232-241 (2013)

  2. T. Kato, H. Kashida, H. Kishida, H. Yada, H. Okamoto, and H. Asanuma,
    "Developmentof a robust model system of FRET using base-surrogates tethering fluorophores for strict control of their position and orientation within DNA duplex",
    J. Am. Chem. Soc. 135, 741-750 (2013)

  3. M. Shin, S. Takaishi, S. Kumagai, Y. Ueda, B. K. Breedlove, H. Matsuzaki, H. Okamoto, Y. Wakabayashi and M. Yamashita,
    "Smallest optical gap for quasi-one-dimensional iodo-bridged platinum compounds ",
    Dalton Trans. 42, 6277-6280 (2013)

  4. R. Uchida, H. Yada, M. Makino, Y. Matsui, K. Miwa, T. Uemura, J. Takeya, and H. Okamoto,
    "Charge modulation infrared spectroscopy of rubrene single-crystal field-effect transistors ",
    Appl. Phys. Lett. 102, 093301:1-5 (2013)

  5. H. Yada, T. Miyamoto, and H. Okamoto,
    "Teraherz-field-diriven sub-picosecond optical switching in a one-dimensional Mott insulators enabled by large third-order optical nonlinearity ",
    Appl. Phys. Lett. 102, 091104:1-4 (2013)

  6. B.-S. Li, A. Sawa, and H. Okamoto,
    "Fermi level shift in La2-xSrxCuO4 probed by heteroepitaxial junctions with Nb-doped SrTiO3",
    Appl. Phys. Lett. 102, 111606:1-4 (2013)

  7. R. Sawada, H. Uemura, M. Sotome, H. Yada, N. Kida, K. Iwano, Y. Shimoi, S. Horiuchi, and H. Okamoto,
    "Large second-order optical nonlinearity in a ferroelectric molecular crystal of croconic acid with strong intermolecular hydrogen bonds",
    Appl. Phys. Lett. 102, 162901:1-4 (2013)

  8. T. Miyamoto, H. Yada, H. Yamakawa, and H. Okamoto,
    "Ultrafast modulation of polarization amplitude by terahertz fields in electronic-type organic ferroelectrics",
    Nat. Commun. 4, 2586:1-9 (2013)

  9. T. Miyamoto, K. Kimura, T. Hamamoto, H. Uemura, H. Yada, H. Matsuzaki, S. Horiuchi, and H. Okamoto,
    "Measurement of a photoinduced transition from a nonordered phase to a transient ordered phase in the organic quantum-paraelectric compound dimethyltetrathiafulvalene-dibromodichloro-p-benzoquinone using femtosecond laser irradiation",
    Phys. Rev. Lett. 111, 187801:1-5 (2013)

その他論文・著書　others

  1. 岡本博, 澤彰仁, "銅酸化物における超高速光誘起絶縁体－金属転移", 固体物理　第48巻 第12号, 697-709 (2013)

  2. H. Matsuzaki and H. Okamoto, “Photoinduced Phase Transitions in MMX-Chain Compounds” in “Material Designs and New Physical Properties in MX- and MMX-Chain Compounds” Ed. by M. Yamashita and H. Okamoto (Springer), 231-242 (2013)

  3. H. Kishida and H. Okamoto, “Third-Order Optical Nonlinearity of Halogen-Bridged Nickel(III) Compounds” in Material Designs and New Physical Properties in MX- and MMX-Chain Compounds” Ed. by M. Yamashita and H. Okamoto (Springer), 93-110 (2013)

  4. H. Matsuzaki and H. Okamoto, “Photoinduced Phase Transitions in MX-Chain Compounds” in “Material Designs and New Physical Properties in MX- and MMX-Chain Compounds” Ed. by M. Yamashita and H. Okamoto (Springer), 55-82 (2013)

  5. H. Okamoto and H. Matsuzaki, “Structures and Optical Properties of Pt and Pd Compounds with Charge-Density-Waves” in “Material Designs and New Physical Properties in MX- and MMX-Chain Compounds” Ed. by M. Yamashita and H. Okamoto (Springer), 9-30 (2013)

2012

  1. H. Uemura, N. Maeshima, K. Yonemitsu, and H. Okamoto,
    "Dimerization-induced spin-charge coupling in one-dimensional Mott insulators revealed by femtosecond reflection spectroscopy of Rb-tetracyanoquinodimethane salts ",
    Phys. Rev. B 85, 125112:1-7 (2012)

  2. N. Kida,
    "New Optical Route to Magnetic State Control ",
    Physics 5, 41 (2012)

  3. T. Miyamoto, H. Uemura, and H. Okamoto,
    "Role of Coulomb Interactions and Spin-Peierls Dimerizations in Neutral-to-Ionic Phase Transition Investigated by Femtosecond Reflection Spectroscopy ",
    J. Phys. Soc. Jpn. 81, 073703:1-4 (2012)

  4. H. Matsuzaki, S. Takaishi, M. Takamura, S. Kumagai, M. Yamashita, and H. Okamoto,
    "Temperature- and Pressure-Induced Charge-Density-Wave to Mott-Hubbard Phase Transitions in Quasi-One-Dimensional Bromine-Bridged Pd Compounds ",
    J. Phys. Soc. Jpn. 81, 074705:1-5 (2012)

  5. S. Bordacs, I. Kezsmarki, D. Szaller, L. Demko, N. Kida, H. Murakawa, Y. Onose, R. Shimano, T. Room, U. Nagel, S. Miyahara, N. Furukawa, and Y. Tokura,
    "Chirality of matter shows up via spin excitations ",
    Nature Physics 8, 734-738 (2012)

  6. S. Tao, N. Ohtani, R. Uchida, T. Miyamoto, Y. Matsui, H. Yada, H. Uemura, H. Matsuzaki, T. Uemura, J. Takeya, and H. Okamoto,
    "Relaxation dynamics of photoexcited excitons in rubrene single crystals using femtosecond absorption spectroscopy ",
    Phys. Rev. Lett. 109, 097403:1-5 (2012)

  7. H. Iguchi, S. Takaishi, B. K. Breedlove, M. Yamashita, H. Matsuzaki, H. Okamoto,
    "Controlling the Electronic States and Physical Properties of MMX-Type Diplatinum-Iodide Chain Complexes via Binary Countercations ",
    Inorg. Chem. 51, 9967-9977 (2012)

  8. N. Kida and Y. Tokura,
    "Terahertz magnetoelectric response via electromagnons in magnetic oxides ",
    Journal of Magnetism and Magnetic Materials 324, 3512-3515 (2012)

2011

  1. S. Wall, D. Brida, S. R. Clark, H. P. Ehrke, D. Jaksch, A. Ardavan, S. Bonora, H. Uemura, Y. Takahashi, T. Hasegawa, H. Okamoto, G. Cerullo, and A. Cavalleri,
    "Quantum interference between charge excitation paths in a solid-state Mott insulator ",
    Nature Physics 7, 114-118 (2011)

  2. K. Otsubo, Y. Wakabayashi, J. Ohara, S. Yamamoto, H. Matsuzaki, H. Okamoto, K. Nitta, T. Uruga, and H. Kitagawa,
    "Bottom-up realization of a porous metal-organic nanotubular assembly",
    Nature Materials 10, 291-295 (2011)

  3. S. Tao, H. Matsuzaki, H. Uemura, H. Yada, T. Uemura, J. Takeya, T. Hasegawa, and H. Okamoto,
    "Optical pump-probe spectroscopy of photocarriers in rubrene single crystals ",
    Phys. Rev. B 83, 075204:1-9 (2011)

  4. H. Okamoto, T. Miyagoe, K. Kobayashi, H. Uemura, H. Nishioka, H. Matsuzaki, A. Sawa, and Y. Tokura,
    "Photoinduced transition from Mott insulator to metal in the undoped cuprates Nd2CuO4 and La2CuO4",
    Phys. Rev. B 83, 125102:1-10 (2011)

  5. H. Yada, M. Matsubara, H. Yamada, A. Sawa, H. Matsuzaki, and H. Okamoto,
    "Ultrafast control of magnetization by photocarrier injection in La0.9Sr0.1MnO3/SrTiO3 heterostructures",
    Phys. Rev. B 83, 165408:1-6 (2011)

  6. H. Yada, M. Matsubara, H. Matsuzaki, H. Yamada, A. Sawa, and H. Okamoto,
    "Discrimination between photodoping- and heat-induced　magnetization changes in Nd0.52Sr0.48MnO3 using a heterostructure with SrTiO3",
    Phys. Rev. B 84, 045114:1-8 (2011)

  7. M. Ohkura, Y. Ishige, R. Sawada, H. Matsuzaki, Y. Nogami, H. Nishikawa,M. Yamashita, S. Horiuchi, and H. Okamoto,
    "Optical and structural studies of a two-dimensional organic Mott insulator dimethylphenazine-tetrafluorotetracyanoquinodimethane",
    Phys. Rev. B 84, 085136:1-10 (2011)

  8. B. S. Li, A. Sawa, and H. Okamoto,
    "Suppression of Precipitates in the La2-xSrxCuO4 Films Grown on LaSrAlO4 Substrates by Introducing Homoepitaxial Layer",
    Jpn. J. Appl. Phys. 50, 093101:1-3 (2011)

  9. J. Li, S. Takaishi, N. Fujinuma, K. Endo, M. Yamashita, H. Matsuzaki, H. Okamoto, K. Sawabe, T. Takenobu and Y. Iwasa,
    "Enhancement of luminescence intensity in TMPY/perylene co-single crystals",
    J. Mater. Chem. 21, 17662-17666 (2011)

その他論文・著書　others

  1. 貴田徳明, 十倉好紀 “テラヘルツ光電場で誘起される磁気励起－エレクトロマグノン”, 固体物理　第46巻　第11号, 699-710 (2011)

  2. 岡本　博, 上村紘崇 “強相関擬１次元電荷移動錯体における光誘起相転移の超高速ダイナミクス”, 固体物理　第46巻　第11号, 617-640 (2011)

2010

  1. H. Iguchi, S. Takaishi, H. Miyasaka, M. Yamashita, H. Matsuzaki, H. Okamoto, H. Tanaka, and S. Kuroda,
    "Water-Vapor-Induced Reversible Switching of Electronic States in an MMX-Type Chain Complex with Retention of Single Crystallinity ",
    Angew. Chem. Int. Ed. 49, 552 - 555 (2010)

  2. H. Okamoto,
    "Probing Charge-Lattice-Coupled Fluctuations in Organic QuantumParaelectrics",
    J. Phys. Soc. Jpn. Online－News and Comments, April 12 (2010)

  3. S. Niizeki, T. Asano, K. Takahashi, H. Mori, H. Matsuzaki, H. Okamoto, and Y. Nishio,
    "Peculiar electric-field-induced metastable state of charge-ordered molecular conductor β-(meso-DMBEDT-TTF)2PF6",
    Physica B: Condensed Matter 405, S37-S40 (2010)

  4. H. Uemura, H. Matsuzaki, Y. Takahashi, T. Hasegawa and H. Okamoto,
    "Ultrafast charge dynamics in organic one-dimensional Mott insulators ",
    Physica B: Condensed Matter 405, S357-S359 (2010)

  5. H. Okamoto, T. Miyagoe, K. Kobayashi, H. Uemura, H. Nishioka, H. Matsuzaki, A. Sawa, and Y. Tokura,
    "Ultrafast charge dynamics in photoexcited Nd2CuO4 and La2CuO4 cuprate compounds investigated by femtosecond absorption spectroscopy ",
    Phys. Rev. B 82, 060513(R):1-4 (2010)

  6. T. Manabe, K. Yokoyama, T. Ishii, H. Miyasaka, H. Matsuzaka, M. Yamashita, T. Kawashima, H. Matsuzaki, H. Kishida, H. Okamoto, K. Marumoto, H. Tanaka, H. Itoh and S. Kuroda,
    "Physical Properties of Quasi-One-Dimensional Mixed-Metal and Mixed-Halogen Complexese, Ni 1 - x Pd x (chxn) 2 Cl y Br 1 - y Y 2",
    Mol. Cryst. Liq. Cryst. 376, 165-170 (2010)

  7. H. Uemura and H. Okamoto,
    "Direct Detection of the Ultrafast Response of Charges and Molecules in the Photoinduced Neutral-to-Ionic Transition of the Organic Tetrathiafulvalene-p-Chloranil Solid ",
    Phys. Rev. Lett. 105, 258302:1-4 (2010)

その他論文・著書　others

  1. H. Okamoto, "Ultrafast photoinduced phase transitions in one-dimensional organic correlated electron systems", Molecular Electronic and Related Materials-Control and Probe with Light, 59-97, Transworld Research Network (2010)

2009

  1. S. Tao, Y. Miyata, K. Yanagi, H. Kataura, and H. Okamoto,
    "Subpicosecond coherent nonlinear optical response of isolated single-walled carbon nanotubes ",
    Phys. Rev. B 80, 201405:1-4 (2009)

  2. H. Kishida, H. Takamatsu, K. Fujinuma, and H. Okamoto,
    "Ferroelectric nature and real-space observations of domain motions in the organic charge-transfer compound tetrathiafulvalene-p-chloranil ",
    Phys. Rev. B 80, 205201:1-7 (2009)

  3. M. Sasaki, H. Wu, D. Kawakami, S. Takaishi, T. Kajiwara, H.Miyasaka, B. K. Breedlove, M. Yamashita, H. Kishida, H. Matsuzaki, H. Okamoto, H. Tanaka, and S. Kuroda,
    "Effect of an In-Plane Ligand on the Electronic Structures of Bromo-Bridged Nano-Wire Ni-Pd Mixed-Metal Complexes, [Ni1-xPdx(bn)2Br]Br2 (bn = 2S,3S-Diaminobutane) ",
    Inorg. Chem. 48, 7446-7451 (2009)

  4. A. Shimizu, M. Uruichi, K. Yakushi, H. Matsuzaki, H. Okamoto, M. Nakano, Y. Hirao, K. Matsumoto, H. Kurata, and T. Kubo,
    "Resonance Balance Shift in Stacks of Delocalized Singlet Biradicals ",
    Angew. Chem. Int. Ed. 48, 5482-5486 (2009)

  5. H. Matsuzaki, H. Uemura, M. Matsubara, T. Kimura, Y. Tokura, and H. Okamoto,
    "Detecting charge and lattice dynamics in photoinduced charge-order melting in perovskite-type manganites using a 30-femtosecond time resolution ",
    Phys. Rev. B 79, 235131:1-7 (2009)

  6. M. Matsubara, Y. Kaneko, J. P. He, H. Okamoto, and Y. Tokura,
    "Ultrafast polarization and magnetization response of multiferroic GaFeO3 using time-resolved nonlinear optical techniques ",
    Phys. Rev. B 79, 140411:1-4 (2009)

  7. H. Kishida, K. Hirota, H. Okamoto, K. Kokubo, and T. Yamamoto,
    "Two-photon excited states in charge-transfer type conjugated polymers ",
    Synth. Met. 159, 868 - 870 (2009)

  8. T. Ogasawara, N. Iwata, Y. Murakami, H. Okamoto, and Y. Tokura,
    "Submicron-scale spatial feature of ultrafast photoinduced magnetization reversal in TbFeCo thin film ",
    Appl. Phys. Lett. 94, 162507:1-3 (2009)

  9. H. Iguchi, S. Takaishi, T. Kajiwara, H. Miyasaka, M. Yamashita, H. Matsuzaki, and H. Okamoto,
    "Direct Synthesis and Crystal Structure of Dehydrated State in Vapochromic MMX-type Quasi-One-Dimensional Iodide-Bridged Platinum Complexes ",
    J. Inorg. Organomet. Polym. 19, 85 - 90 (2009)

  10. S. Wall, H. Ehrke, D. Polli, D. Brida, Y. Tokura, H. Okamoto, G. Cerullo, and A. Cavalleri,
    "Probing strongly correlated electron dynamics on extreme timescales",
    J. Phys.: Conf. Ser. 148, 012018:1-3 (2009)

  11. M. Matsubara, Y. Kaneko, J. P. He, H. Okamoto, and Y. Tokura,
    "Ultrafast polarization and magnetization dynamics in a multiferroic GaFeO3 ",
    J. Phys.: Conf. Ser. 148, 012015:1-3 (2009)

  12. H. Uemura, H. Matsuzaki, and H. Okamoto,
    "Ultrafast photoinduced melting of spin-Peierls phase in potassium-tetracyanoquinodimethane ",
    J. Phys.: Conf. Ser. 148, 012012:1-3 (2009)

  13. S. Tao, T. Miyagoe, H. Matsuzaki, H. Ohtsu, M. Hasegawa, S. Takaishi, M. Yamashita, and H. Okamoto, "
    Ultrafast optical responses in one-dimensional Mott insulators of halogen-bridged Ni compounds ",
    J. Phys.: Conf. Ser. 148, 012011:1-3 (2009)

  14. M. Matsubara, T. Ogasawara, Y. Tomioka, K. Tobe, H. Okamoto, and Y. Tokura,
    "A Key for Photoinduced Insulator-Metal Transitions in Manganites: Lattice Constant Matching between Charge/Orbital Ordered Insulator and Ferromagnetic Metal",
    J. Phys. Soc. Jpn. 78, 023707:1-4 (2009)

  15. K. Kimura, H. Matsuzaki, S. Takaishi, M. Yamashita, and H. Okamoto,
    "Ultrafast photoinduced transitions in charge density wave, Mott insulator, and metallic phases of an iodine-bridged platinumcompound",
    Phys. Rev. B 79, 075116:1-5 (2009)

その他論文・著書　others

  1. 岡本　博、 “有機半導体における光誘起相転移の超高速ダイナミクスとコヒーレント振動” 「強光子場科学の最前線2」 強光子場科学研究懇談会 123-138 (2009）

  2. 小笠原　剛,　岡本　博,　十倉　好紀, 岩田　昇, 村上　善照、 “微小領域における光誘起磁化ダイナミクスの空間的効果” 固体物理　第44巻　第6号, 371-380 (2009)

2008

  1. H. Iguchi, S. Takaishi, T. Kajiwara, H. Miyasaka, M. Yamashita, H. Matsuzaki, and H. Okamoto,
    "Mixed Charge-Ordering State of MMX-Type Quasi-One-Dimensional Iodide-Bridged Platinum Complexes with Binary Countercations",
    J. Am. Chem. Soc. 130, 17668-17669 (2008)

  2. H. Uemura, H. Matsuzaki, Y. Takahashi, T. Hasegawa, and H. Okamoto,
    "Ultrafast Charge Dynamics in One-Dimensional Organic Mott Insulators",
    J. Phys. Soc. Jpn. 77, 113714:1-4 (2008) Papers of Editor's Choice

  3. S. Takaishi, M. Takamura, T. Kajiwara, H. Miyasaka, M. Yamashita, M. Iwata, H. Matsuzaki, H. Okamoto,H. Tanaka, S. Kuroda, H. Nishikawa, H. Oshio, K. Kato, and M. Takata,
    "Charge-Density-Wave to Mott-Hubbard Phase Transition in Quasi-One-Dimensional Bromo-Bridged Pd Compounds",
    J. Am. Chem. Soc. 130, 12080-12084 (2008)

  4. S. Matsunaga, K. Takizawa, D. Kawakami, H. Iguchi, S. Takaishi, T. Kajiwara, H. Miyasaka, M. Yamashita, H. Matsuzaki, and H. Okamoto,
    "Three-Dimensionally Ordered CDW State in Quasi-One-Dimensional Iodo-Bridged Dinuclear Platinum Mixed-Valence Compounds, A4[Pt2I(pop)4]･nH2O (A = Aromatic Ammonium Cations)",
    Eur. J. Inorg. Chem. 2008, 3269-3273 (2008)

  5. M. Matsubara, Y. Okimoto, T. Ogasawara, S. Iwai, Y. Tomioka, H. Okamoto, and Y. Tokura,
    "Photoinduced switching between charge and orbital ordered insulator and ferromagnetic metal in perovskite manganites",
    Phys. Rev. B 77, 094410:1-5 (2008)

  6. J. Xie, H. Wu, D. Kawakami, H. Iguchi, S. Takaishi, M. Yamashita, H. Matsuzaki, H. Okamoto, H. Tanaka, and S. Kuroda,
    "Electronic Structure of CoIII Doped Bromo-Bridged Ni Complexes, [Ni1-xCox(chxn)2Br]Br2",
    Inorg. Chem. 47, 1949-1952 (2008)

  7. M. Matsubara, Y. Okimoto, T. Ogasawara, Y. Tomioka, H. Okamoto, and Y. Tokura,
    "Ultrafast photoinduced ferromagnetism in the perovskite manganite Gd0.55Sr0.45MnO3",
    J. Appl. Phys. 103, 07B110:1-3 (2008)

  8. T. Miyagoe, S. Tao, A. Maeda, H. Matsuzaki, H. Ohtsu, M. Hasegawa, S. Takaishi, M. Yamashita and H. Okamoto,
    "Ultrafast Optical Responses in a One-Dimensional Mott Insulator of a Br-Bridged Ni Compound",
    J. Phys. Soc. Jpn. 77, 023711:1-4 (2008)

  9. H. Kishida, K. Hirota, H. Okamoto, H. Kokubo, and T. Yamamoto,
    "Continuous control of third-order optical nonlinearity in charge-transfer-type conjugated polymers",
    Appl. Phys. Lett. 92, 033309:1-3 (2008)

  10. S. Takaishi, M. Yamashita, H. Matsuzaki, H. Okamoto, H. Tanaka, S-i. Kuroda, A. Goto, T. Shimizu, T. Takenobu, and Y. Iwasa,
    "One-Dimensional Bromo-Bridged NiIII Complexes [Ni(S,S-bn)2Br]Br2 (S,S-bn=2S,3S-diaminobutane): Synthesis,Physical Properties, and Electrostatic Carrier Doping",
    Chemistry - A European Journal 14, 472-477 (2008)

  11. Y. Morita, S. Suzuki, K. Fukui, S. Nakazawa, H. Kitagawa, H. Kishida, H. Okamoto, A. Naito, A. Sekine, Y. Ohashi, M. Shiro, K. Sasaki, D. Shiomi, K. Sato, T. Takui, and K. Nakasuji,
    "Thermochromism in an organic crystal based on the coexistence of σ- and π-dimers ",
    Nature Materials 7, 48-51 (2008)

その他論文・著書　others

  1. 岡本　博、 “強相関一次元遷移金属化合物の巨大非線形光学応答と超高速光誘起相転移” 「金属錯体の現代物性化学」　4章.多重機能性の最前線　1節　227-250　三共出版 (2008)

2007

  1. M. Matsubara, Y. Okimoto, T. Ogasawara, Y. Tomioka, H. Okamoto, and Y. Tokura,
    "Ultrafast Photoinduced Insulator-Ferromagnet Transition in the Perovskite Manganite Gd0.55Sr0.45MnO3",
    Phys. Rev. Lett. 99, 207401:1-4 (2007)

  2. S. Tao, T. Miyagoe, A. Maeda, H. Matsuzaki, H. Ohtsu, M. Hasegawa, S. Takaishi, M. Yamashita,and H. Okamoto,
    "Ultrafast Optical Switching by Using Nanocrystals of a Halogen-Bridged Nickel-Chain Compound Dispersed in an Optical Polymer",
    Adv. Mater. 19, 2707-2710 (2007)

  3. K. Ikegami, K. Ono, J. Togo, T. Wakabayashi, Y. Ishige, H. Matsuzaki, H. Kishida, and H. Okamoto,
    "Ultrafast photoinduced melting of spin-Peierls phase in the organic charge-transfer compounds alkali-tetracyanoquinodimethane",
    Phys. Rev. B 76, 085106:1-12 (2007)

  4. H. Wu, D. Kawakami, M. Sasaki, J. Xie, S. Takaishi, T. Kajiwara, H. Miyasaka, M. Yamashita, H. Matsuzaki, and H. Okamoto,
    "Why Does the Disorder of R-pn and rac-pn Ligands in the Quasi-One-Dimentional Bromo-Bridged NiIII Complexes, [Ni(pn)2Br]Br2 (pn=1,2-diaminopropane) Afford Similar STM Patterns ?",
    Inorg. Chem.46, 7410 - 7413 (2007)

  5. K. Yanagi, K. Iakoubovskii, H. Matsui, H. Matsuzaki, H. Okamoto, Y. Miyata, Y. Maniwa, S. Kazaoui, N. Minami, and H. Kataura,
    "Photosensitive Function of Encapsulated Dye in Carbon Nanotubes",
    J. Am. Chem. Soc. 129, 4992 - 4997 (2007)

  6. Y. Okimoto, H. Matsuzaki, Y. Tomioka, I. Kezsmarki, T. Ogasawara, M. Matsubara, H. Okamoto, and Y. Tokura,
    "Ultrafast Photoinduced Formation of Metallic State in a Perovskite-type Manganite with Short Range Charge and Orbital Order",
    J. Phys. Soc. Jpn. 76, 043702:1-4 (2007)

  7. S. Iwai, K. Yamamoto, A. Kashiwazaki, F. Hiramatsu, H. Nakaya, Y. Kawakami, K. Yakushi, H. Okamoto, H. Mori, and Y. Nishio,
    "Photoinduced Melting of a Stripe-Type Charge-Order and Metallic Domain Formation in a Layered BEDT-TTF-Based Organic Salt",
    Phys. Rev. Lett. 98, 097402:1-4 (2007)

  8. H. Okamoto, H. Matsuzaki, T. Wakabayashi, Y. Takahashi, and T. Hasegawa,
    "Photoinduced Metallic State Mediated by Spin-Charge Separation in a One-Dimensional Organic Mott Insulator",
    Phys. Rev. Lett. 98, 037401:1-4 (2007)

  9. S. Tomimoto, M. Matsubara, T. Ogasawara, H. Okamoto, T. Kimura, and Y. Tokura,
    "Optical Control of the Magnetic Anisotropy of Ferromagnetic Bilayered Manganites",
    Phys. Rev. Lett. 98, 017402:1-4 (2007)

  10. H. Arakawa, D. Kawakami, S. Takaishi, T. Kajiwara, H. Miyasaka, K-i. Sugiura, M. Yamashita, H. Kishida, and H. Okamoto,
    "Tuning of Electronic Structures of Quasi-One-Dimensional Bromo-Bridged PdII-PdIV Mixed-Valence Complexes by Substituting Counter Anions",
    Bull.Chem.Soc.Jpn. 80, 189-191 (2007)

その他論文・著書　others

  1. 岡本　博,　田尾　祥一 “単層カーボンナノチューブにおける超高速非線形光学応答” 固体物理 第42巻 第7号, 443-453 (2007)

  2. 岡本　博 “カーボンナノチューブの非線形光学効果と光スイッチング現象” マテリアルステージ 第7巻 第4号 通巻76号, 44-48 (2007)

  3. 小笠原　剛,　岡本　博,　十倉　好紀 “フェムト秒超短パルス光照射による強磁性スピンダイナミクス” 固体物理 第42巻 第3号, 175-183 (2007)

2006

  1. H. Matsuzaki, M. Yamashita and H. Okamoto,
    "Ultrafast Photoconversion from Charge Density Wave State to Mott-Hubbard State in One-Dimensional Extended Peierls-Hubbard System of Br-Bridged Pd Compound",
    J. Phys. Soc. Jpn. 75, 123701:1-4 (2006) Papers of Editor's Choice

  2. T. Ogasawara, K. Ohgushi, H. Okamoto, and Y. Tokura,
    "Photoinduced Dynamics of Sublattice Magnetization in Ferrimagnets:FeCr2S4and CoCr2S4",
    J. Phys. Soc. Jpn. 75, 083707:1-4 (2006) Papers of Editor's Choice

  3. D. Kawakami, M. Yamashita, S. Matsunaga, S. Takaishi, T. Kajiwara, H. Miyasaka, K.-i. Sugiura, H. Matsuzaki, H. Okamoto, Y. Wakabayashi and H. Sawa,
    "Halogen-Bridged PtII/PtIV Mixed-Valence Ladder Compounds",
    Angew. Chem. Int. Ed. 45, 7214 - 7217 (2006)

  4. M. Ohtani, H. Kishida. K. Hirota, H. Sakurada, N. Kawamoto, Y. Murakami, K. Ueno, J. Matsuno, Y. Okimoto, T. Makino, Y. Segawa, Y. Tokura, D. Shindo, H. Okamoto, and M. Kawasaki,
    "Sr2TM O3(TM = Ni,Co) Compounds with 1D TM-O Chains",
    Adv. Mater. 18, 2541 - 2544 (2006)

  5. M. Yamashita, K. Takizawa, S. Matsunaga, D. Kawakami, H. Iguchi, S. Takaishi, T. Kajiwara, F. Iwahori, T. Ishii, H. Miyasaka, K.-i.Sugiura, H. Matsuzaki, H. Kishida, and H. Okamoto,
    "Versatile Vapochromic Behavior Accompanied by a Phase Change between Charge-Polarization State and Charge-Density-Wave Statein a Quasi-One-Dimensional Iodo-Bridged Dinuclear Platinum Mixed-Valence Compound, [{NH3(CH2)5NH3}2][Pt2(pop)4I]・4H2O",
    Bull. Chem. Soc. Jpn. 79, 1404 - 1406 (2006)

  6. S. Matsumoto, H. Matsui, A. Maeda, T. Takenobu, Y. Iwasa, Y. Miyata, H. Kataura, Y. Maniwa, and H. Okamoto,
    "Optical Stark Effect of Exciton in Semiconducting Single-Walled Carbon Nanotubes",
    Jpn. J. Appl. Phys. 45, L513 - L515 (2006) Express Letter

  7. S. Takaishi, D. Kawakami, M. Yamashita, M. Sasaki, T. Kajiwara, M. Yamashita, H. Miyasaka, K.-i.Sugiura, Y. Wakabayashi, H. Sawa, H. Matsuzaki, H. Kishida, H. Okamoto, H. Watanabe, H. Tanaka, K. Marumoto, H. Ito, and S. Kuroda,
    "Dynamical Valence Fluctuation at the Charge-Density-Wave Phase Boundary in Iodide-Bridged Pt Compound [Pt(chxn)2I]I2",
    J. Am. Chem. Soc. 128, 6420 - 6425 (2006)

  8. A. Maeda, S. Matsumoto, H. Kishida, T. Takenobu, Y. Iwasa, H. Shimoda, O. Zhou, M. Shiraishi, and H. Okamoto,
    "Gigantic Optical Stark Effect and Ultrafast Relaxation of Excitons in Single-Walled Carbon Nanotubes",
    J. Phys. Soc. Jpn. 75, 043709:1-4 (2006)

  9. H. Odaka, Y. Okimoto, T. Yamada, H. Okamoto, M. Kawasaki, and Y. Tokura,
    "Control of magnetic-field effect on electroluminescence in Alq3-based organic light emitting diodes",
    Appl. Phys. Lett. 88, 123501:1-3 (2006)

  10. M. Yamashita, S. Takaishi, A. Kobayashi, H. Kitagawa, H. Matsuzaki and H. Okamoto,
    "Tuning of electronic structures of quasi one-dimensional iodide-bridged dinuclear platinum mixed-valence complexes",
    Coord. Chem. Rev. 250, 2335-2346 (2006)

  11. S. Iwai, Y. Ishige, S. Tanaka, Y. Okimoto, Y. Tokura, and H. Okamoto,
    "Coherent Control of Charge and Lattice Dynamics in a Photoinduced Neutral-to-Ionic Transition of a Charge-Transfer Compound",
    Phys. Rev. Lett. 96, 057403:1-4 (2006)

  12. H. Okamoto, K. Ikegami, T. Wakabayashi, Y. Ishige, J. Togo, H. Kishida, and H. Matsuzaki,
    "Ultrafast Photoinduced Melting of a Spin-Peierls Phase in an Organic Charge-Transfer Compound, K-Tetracyanoquinodimethane",
    Phys. Rev. Lett. 96, 037405:1-4 (2006)

  13. S. Iwai and H. Okamoto,
    "Ultrafast Phase Control in One-Dimensional Correlated Electron Systems",
    J. Phys. Soc. Jpn. 75, 011007:1-21 (2006)

  14. H. Okamoto, S. Matsumoto, A. Maeda, H. Kishida, Y. Iwasa, and T. Takenobu,
    Reply to the comment on "Large Optical Nonlinearity of Semiconducting Single-Walled Carbon Nanotubes under ResonantExcitations",
    Phys. Rev. Lett. 96, 019706 (2006)

その他論文・著書　others

  1. 岡本　博 “単層カーボンナノチューブにおける非線形光学効果と超高速光スイッチング” オプトロニクス Vol. 11 (No.299), 142-147 (2006)

  2. 岡本　博,　岸田　英夫 “有機物・遷移金属化合物の光学的性質” 物理データ事典 Ⅳ章　19.3　量子物性　光学的性質 367-370　朝倉書店 (2006)

2005

  1. M. Nihei, M. Ui, M. Yokota, L. Han, A. Maeda, H. Kishida, H. Okamoto, and H. Oshio,
    "Two-Step Spin Conversion in a Cyanide-Bridged Ferrous Square",
    Angew. Chem. Int. Ed. 44, 6484 - 6487 (2005)

  2. H. Kishida, K. Hirota, T. Wakabayashi, H. Okamoto, H. Kokubo, and T. Yamamoto,
    "Third-order optical nonlinearity in regio-controlled polythiophene films" ,
    Appl. Phys. Lett. 87, 121902:1-3 (2005)

  3. H. Kishida, K. Hirota, T. Wakabayashi, H. Okamoto, B. L. Lee, H. Kokubo, and T. Yamamoto,
    "Third-order nonlinear optical spectroscopy in charge-transfer-type conjugated polymers" ,
    Synth. Met. 153, 141 - 144 (2005)

  4. H. Matsuzaki, H. Takamatsu, H. Kishida, and H. Okamoto,
    "Valence Fluctuation and Domain-Wall Dynamics in Pressure-Induced Neutral-to-Ionic Phase Transition of Organic Charge-Transfer Crystal" ,
    J. Phys. Soc. Jpn. 74, 2925-2928 (2005)

  5. M. Ono, H. Kishida, and H. Okamoto,
    "Direct Observation of Excitons and a Continuum of One-Dimensional Mott Insulators: A Reflection-Type Third-Harmonic-Generation Studyof Ni-Halogen Chain Compounds",
    Phys. Rev. Lett. 95, 087401:1-4 (2005)

  6. Y. Okimoto, R. Kumai, S. Horiuchi, H. Okamoto, and Y. Tokura,
    "Quantum Neutral-Ionic Phase Transition as Investigated by Raman Scattering and X-ray Diffraction",
    J. Phys. Soc. Jpn. 74, 2165-2168 (2005)

  7. A. Maeda, S. Matsumoto, H. Kishida, T. Takenobu, Y. Iwasa, M. Shiraishi, M. Ata, and H. Okamoto,
    "Nonlinear and ultrafast optical response in single-walled carbon nanotubes",
    J. Phys.: Conf. Ser. 21, 177-182 (2005)

  8. H. Kishida, K. Fujinuma, H. Takamatsu, and H. Okamoto,
    "Real-Space Observation of Ferroelectric Domains in Organic Charge-Transfer Complexes by Electromodulation Method",
    Transactions of the Materials Research Society of Japan 30, 75-78 (2005)

  9. H. Matsuzaki, H. Kishida, H. Okamoto, K. Takizawa, S. Matsunaga, S. Takaishi, H. Miyasaka, K. Sugiura, and M. Yamashita,
    "Vapochromic Behavior Accompanied by Phase Transition between Charge-Polarization and Charge-Density-Wave States in a Quasi-One-Dimensional Iodine-Bridged Dinuclear Platinum Compound",
    Angew. Chem. Int. Ed. 44, 3240-3243 (2005)

  10. T. Ogasawara, K. Ohgushi, Y. Tomioka, K. S. Takahashi, H. Okamoto, M. Kawasaki, and Y. Tokura,
    "General Features of Photoinduced Spin Dynamics in Ferromagnetic and Ferrimagnetic Compounds",
    Phys. Rev. Lett. 94, 087202:1-4 (2005)

  11. A. Maeda, S. Matsumoto, H. Kishida, T. Takenobu, Y. Iwasa, M. Shiraishi, M. Ata, and H. Okamoto,
    "Large Optical Nonlinearity of Semiconducting Single-Walled Carbon Nanotubes under Resonant Excitations",
    Phys. Rev. Lett. 94, 047404:1-4 (2005)

その他論文・著書　others

  1. 十倉好紀、岡本　博 強相関系の光応答 「光科学研究の最前線」 強光子場科学研究懇談会 192-193 (2005）

2004

  1. K. Waku, T. Katsufuji, Y. Kohsaka, T. Sasagawa, H. Takagi, H. Kishida, H. Okamoto, M. Azuma, and M. Takano,
    "Charge dynamics of Ca2-xNaxCuO2Cl2 as a correlated electron system with the ideal tetragonal lattice",
    Phys. Rev. B 70, 134501:1-8 (2004)

  2. H. Okamoto, Y. Ishige, S. Tanaka, H. Kishida, S. Iwai, and Y. Tokura,
    "Photoinduced phase transition in tetrathiafulvalene-p-chloranil observed in femtosecond reflection spectroscopy",
    Phys. Rev. B 70, 165202:1-18 (2004)

  3. A. Maeda, M. Ono, H. Kishida, T. Manako, A. Sawa, M. Kawasaki, Y. Tokura, and H. Okamoto,
    "Third-order nonlinear susceptibility spectra of CuO chain compounds investigated by the Z-scan method",
    Phys. Rev. B 70, 125117:1-7 (2004)

  4. H. Kishida, K. Hirota, T. Wakabayashi, B.L. Lee, H. Kokubo, T. Yamamoto, and H. Okamoto,
    "Third-order optical nonlinearity in charge-transfer-type conjugated polymers",
    Phys. Rev. B 70, 115205:1-5 (2004)

  5. M. Yamashita, D. Kawakami, S. Matsunaga, Y. Nakayama, M. Sasaki, S. Takaishi, F. Iwahori, H. Miyasaka, K. Sugiura, Y. Wada, H. Miyamae, H. Matsuzaki,H. Okamoto, H. Tanaka, K. Marumoto, and S. Kuroda,
    "[｛[Pt(en)2][PtX2(en)2]}3][{(MX5)X3}2]・12H2O:Quasi-One-Dimensional Halogen-Bridged PtⅡ-PtⅣ Mixed-Valence Compounds with Magnetic Counteranions",
    Angew. Chem. Int. Ed. 43, 4763-4767 (2004)

  6. M. Ono, K. Miura, A. Maeda, H. Matsuzaki, H. Kishida, Y. Taguchi, Y. Tokura, M. Yamashita, and H. Okamoto,
    "Linear and nonlinear optical properties of one-dimensional Mott insulators consisting of Ni-halogen chain and CuO-chain compounds",
    Phys. Rev. B 70, 085101:1-20 (2004)

  7. H. Matsuzaki, K. Iwano, T. Aizawa, M. Ono, H. Kishida, M. Yamashita, and H. Okamoto,
    "Tuning the electronic structure from charge-transfer insulator to Mott-Hubbard and Peierls insulators in one-dimensional halogen-bridged mixed metal compounds",
    Phys. Rev. B 70, 035204:1-6 (2004)

  8. S. Takaishi, H. Miyasaka, K. Sugiura, M. Yamashita, H. Matsuzaki, H. Kishida, H. Okamoto, H. Tanaka, K. Marumoto, H. Ito, S. Kuroda, and T. Takami,
    "Visualization of Local Valence Structures in Quasi-One-Dimensional Halogen-Bridged Complexes [Ni1-xPdx(chxn)2Br]Br2 by STM",
    Angew. Chem. Int. Ed. 43, 3171-3175 (2004)

  9. H. Kishida, H. Okamoto, B. L. Lee, H. Kokubo, and T. Yamamoto,
    "Third-harmonic generation in CT-type conjugated polymers" ,
    Transactions of the Materials Research Society of Japan 29, 981-984 (2004)

  10. S. Tomimoto, S. Miyasaka, T. Ogasawara, H. Okamoto, and Y. Tokura,
    "Photoinduced melting of the orbital order in a perovskite-type vanadate LaVO3" ,
    J. Lumin. 108, 185-188 (2004)

その他論文・著書　others

  1. 岸田英夫、岡本　博　光物性の基礎と応用　第８回　測定法(5　“変調分光” オプトロニクス Vol. 23 (No.272), 132-139 (2004)

  2. H. Okamoto, S. Iwai and H. Matsuzaki, "Photoinduced phase transitions in one-dimensional correlated electron systems", in "Photoinduced phase transitions" ed. by K. Nasu (World Scientific), 239-308 (2004)

2003

  1. T. Ogasawara, M. Matsubara, Y. Tomioka, M. Kuwata-Gonokami, H. Okamoto, and Y. Tokura,
    "Photoinduced spin dynamics in La0.6Sr0.4MnO3 observed by time-resolved magneto-optical Kerr spectroscopy",
    Phys. Rev. B 68, 180407:1-4 (2003)

  2. M. Yamashita, T. Ono, S. Matsunaga, M. Sasaki, S. Takaishi, F. Iwahori, H. Miyasaka, K. Sugiura, H. Kishida, H. Okamoto, H. Tanaka, Y. Hasegawa,K. Marumoto, H. Ito, S. Kuroda, and N. Kimura,
    "Carrier Doping Effect into Quasi-One-Dimensional Bromo-Bridged Ni(III) Complexes with Strong Electron Correlation by Cu(Ⅱ) Ions, [Ni1-xCux(chxn)2Br]Br2-x",
    Inorg. Chem. 42, 7692-7694 (2003)

  3. R. Kanehama, M. Umemiya, F. Iwahori, H. Miyasaka, K. Sugiura, M. Yamashita, Y. Yokochi, H. Ito, S. Kuroda, H. Kishida, and H. Okamoto,
    "Novel ET-Coordinated Copper(I) Complexes: Syntheses, Structures, and Physical Properties (ET = BEDT-TTF = Bis(ethylenedithio)tetrathiafulvalene)",
    Inorg. Chem. 42, 7173-7181 (2003)

  4. H. Kishida, M. Ono, A. Sawa, M. Kawasaki, Y. Tokura, and H. Okamoto,
    "Third-order nonlinear optical spectroscopu in the two-dimensional cprates Nd2CuO4 and La2CuO4",
    Phys. Rev. B 68, 075101:1-5 (2003)

  5. S. Iwai, M. Ono, A. Maeda, A. Maeda, H. Matsuzaki, H. Kishida, H. Okamoto, and Y. Tokura,
    "Ultrafast Optical Switching to a Metallic State by Photoinduced Mott Transition in a Harogen-Bridged Nickel-Chain Compound",
    Phys. Rev. Lett. 91, 057401:1-4 (2003)

  6. S. Tomimoto, S. Miyasaka, T. Ogasawara, H. Okamoto, and Y. Tokura,
    "Ultrafast photoinduced melting of orbital order in LaVO3",
    Phys. Rev. B 68, 035106:1-4 (2003)

  7. H. Matsuzaki, W. Fujita, K. Awaga, and H. Okamoto,
    "Photoinduced Phase Transition in an Organic Radical Crystal with Room Temperature Optical and Magnetic Bistability" ,
    Phys. Rev. Lett. 91, 017403:1-4 (2003)

  8. Y. Ogawa, H. Yamada, T. Ogasawara, T. Arima, H. Okamoto, M. Kawasaki, Y. Tokura,
    "Nonlinear magneto-optical Kerr rotation of an oxide superlattice with artificially broken symmetry",
    Phys. Rev. Lett. 90, 217403:1-4 (2003)

  9. T. Yamamoto, B. L. Lee, H. Kokubo, H. Kishida, K. Hirota,T. Wakabayashi, and H. Okamoto,
    "Synthesis of a New Thiophene/Quinoxaline CT-Type Copolymer with High Solubility and Its Basic Optical Properties" ,
    Macromol. Rapid Commun. 24, 440-443 (2003)

  10. R. Kanehama, H. Miyasaka, K. Sugiura, M. Yamashita, H. Itou, S. Kuroda, H. Kishida and H. Okamoto,
    "New charge-transfer salts (ET)8(MnIIBr4)2(DCE)2 and (ET)3MnIIBr4: Preparations, structures and physical properties (ET = BEDT-TTF, DCE = 1,2-dichloroethane)" ,
    Synth. Met. 135-136, 633-634 (2003)

  11. H. Matsuzaki, H. Kishida, K. Takizawa, M. Yamashita, and H. Okamoto,
    "Novel charge-ordering and photo-induced phase transition in MMX chain compounds:R 4[Pt2(pop)4I]",
    Synth. Met. 135-136, 607-608 (2003)

  12. T. Ono, M. Yamashita, K. Yokoyama, S. Furukawa, T. Manabe, K. Sugiura, T. Ishii, H. Miyasaka, H. Matsuzaki, H. Kishida, H. Okamoto, K. Marumoto, H. Tanaka, Y. hasegawa, S. Kuroda, and H. Itou,
    "Tuning of spin density wave strength of Ni(III) complexes with strong electron-correlation",
    Synth. Met. 135-136, 357-358 (2003)

  13. H. Kishida, M. Ono, H. Matsuzaki, M. Yamashita, Y. Taguchi, Y. Tokura, and H. Okamoto,
    "Gigantic Third-Order Optical Nonlinearity in One-Dimensional Mott Insulators",
    Synth. Met. 135-136, 315-316 (2003)

  14. M. Ono, H. Kishida, H. Okamoto, T. Manako, M. Izumi, A. Sawa, M. Kawasaki, and Y. Tokura,
    "Large optical nonlinearity in 1D and 2D cuprates investigated by third harmonic generation spectroscopy",
    Synth. Met. 135-136, 313-314 (2003)

  15. S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura,
    "Coherent valence fluctuation in photo-induced neutral -ionic transition of an one-dimensional charge transfer complex" ,
    Ultrafast Phenomena XIII, Springer Series in Chemical Physics 71, 546-548 (2003),(Springer, Berlin)

  16. Y. Okimoto, S. Horiuchi, E. Saitoh, R. Kumai, H. Okamoto, and Y. Tokura,
    "Optical spectroscopy of the neutral-ionic phase transition in a charge-transfer complex: TTF and Tetrahalo-p-benzoquinones" ,
    Synth. Met. 133-134, 637-639 (2003)

  17. H. Kishida, K. Fujinuma, H. Takamatsu, H. Okamoto, S. Horiuchi, and Y. Tokura,
    "Electric field effect on charge and lattice dynamics in TTF-QCl4 and TTF-QBrCl3",
    Synth. Met. 133-134, 633-635 (2003)

  18. M. Yamashita, H. Aso, S. Matsunaga, K. Takizawa, K. Nakata, C. Kachi-Terajima, F. Iwahori, T. Ishii, H. Miyasaka, K. Sugiura, T. Kawashima, K. Takai, N. Kuroda, M. Shiro, H. Kishida, H. Okamoto, H. Takahashi, H. Tanaka, K. Marumoto, and S. Kuroda,
    "Unprecedented Soliton Formation Mechanism in Quasi-One-Dimensional Chloro-Bridged PtII-PtIV Mixed-Valence Compound, {[Pt(en)2][PtCl2(en)2]}3(CuCl4)412H2O",
    Chem. Lett. 32, 278-279 (2003)

  19. H. Matsuzaki, T. Matsuoka, H. Kishida, K. Takizawa, H. Miyasaka, K. Sugiura, M. Yamashita, and H. Okamoto,
    "Novel optical and magnetic bistability and photo-induced transition in a one-dimensional halogen-bridged binuclear Pt complex",
    Phys. Rev. Lett. 90, 046401:1-4 (2003)

その他論文・著書　others

  1. 岡本　博 集積型金属錯体の科学～物質機能の多様性を求めて～ 化学同人　 231-239 (2003)

  2. 岩井伸一郎、岡本　博 “光で起こすモット転移” 　固体物理 Vol. 38, 677-686 (2003)

2002

  1. K. Iwano, M. Ono, and H. Okamoto,
    "Strong effective suppression of electron-lattice interaction in the photoexcited states of halogen-bridged Ni complexes as one-dimensional Mott insulators",
    Phys. Rev. B 66, 235103:1-5 (2002)

  2. H. Miyasaka, Y. Yoshino, T. Ishii, R. Kanehama, T. manabe, M. Yamashita, H. Nishikawa, I. Ikemoto, H. Kishida, H. Matsuzaki, and H. Okamoto
    "Magnetic/Conducting Hybrid Compound Composed of 1-D Chain [MnII2Cl5(EtOH)]-∞ and BEDT-TTF Stacking Layer",
    Journal of Solid State Chemistry 168, 418-426 (2002)

  3. T. Ogasawara, K. Tobe, T. Kimura, H. Okamoto, and Y. Tokura,
    "Photo-Induced Dynamics of Charge/Orbital Order in Perovskite Manganite Nd0.5Ca0.5MnO3",
    J. Phys. Soc. Jpn. 71, 2380-2383 (2002)

  4. T. Manabe, K. Yokoyama, S. Furukawa, C. Kachi-Terajima, K. Nakata, F. Iwahori, H. Miyasaka, K. Sugiura, M. Yamashita, H. Kishida, and H. Okamoto,
    "Tuning of Spin Density Wave Strengths in Quasi-One-Dimensional Mixed-Halogen-Bridged Nickel(III) Complexes with Strong Electron Correlation,[NiIII (chxn)2Cl1-xBrx](NO3)2",
    Inorg. Chem. 41, 4993-4995 (2002)

  5. H. Okamoto, H. Kishida, M. Ono, H. Matsuzaki, Y. Taguchi, Y. Tokura, and M. Yamashita,
    "Gigantic optical nonlinearity in one-dimensional Mott insulators",
    Nonlinear Optics 29, 687-695 (2002)

  6. S. Fujimori, A. Ino, T. Okane, A. Fujimori, K. Okada, T. Manabe, M. Yamashita, H. Kishida, and H. Okamoto,
    "Photoemission study of quasi-one-dimensional halogen-bridged compound [Ni(chxn)2Br]Br2",
    Surface Review and Letters 9, 1065-1069 (2002)

  7. S. Fujimori, A. Ino, T. Okane, A. Fujimori, K. Okada, T. Manabe, M. Yamashita, H. Kishida, and H. Okamoto,
    "Angle-Resolved Photoemission Study of the MX-chain compound [Ni(chxn)2Br]Br2: Spin-Charge Separation in Hybridized d-p Chains",
    Phys. Rev. Lett. 88, 247601-247604 (2002)

  8. M. Yamashita, K. Yokoyama, S. Furukawa, T. Manabe, T. Ono, K. Nakata, C. Kachi-Terajima, F. Iwahori, T. Ishii, H. Miyasaka, K. Sugiura,　H. Matsuzaki, H. Kishida, H. Okamoto, H. Tanaka, Y. Hasegawa, K. Marumoto, H. Ito, and S. Kuroda,
    "Tuning of Electronic Structures of Quasi-One-Dimensional Bromo-Bridged Ni(III) Complexes with Strong Electron-Correlation by Doping of Co(III) Ions, [Ni1-xCox(Chxn)2Br]Br2",
    Inorg. Chem. 41, 1998-2000 (2002)

  9. W. Fujita, K. Awaga, H. Matsuzaki, and H. Okamoto,
    "Room-temperature magnetic bistability in organic radical crystals: Paramagnetic-diamagnetic phase transition in 1,3,5-trithia-2,4,6-triazapentalenyl" ,
    Phys. Rev. B 65, 064434:1-9 (2002)

  10. S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura,
    "Ultrafast optical switching from an ionic to a neutral state in tetrathiafulvalene-p-chloranil (TTF-CA) observed in femtosecond reflection spectroscopy" ,
    Phys. Rev. Lett. 88, 057402-057405 (2002)

  11. S. Iwai, S. Tanaka, K. Fujinuma, H. Kishida, H. Okamoto, and Y. Tokura,
    "Ultrafast primary process of photo-induced N-I transition and macroscopic oscillation of domain boundary in TTF-CA",
    Phase Transitions 75, 807-813 (2002)

  12. T. Manabe, K. Yokoyama, T. Ishii, H. Miyasaka, H. Matsuzaka, M. Yamashita, T. Kawashima, H. Matsuzaki, H. Kishida, H. Okamoto, K. Marumoto, H. Tanaka, H. Itoh, and S. Kuroda,
    "Physical properties of quasi-one-dimensional Mixed-Metal and Mixed-Halogen Complexes,[Ni1-xPdx(chxn)2Cly Br1-y]Y2",
    Mol. Cryst. Liq. Cryst. 376, 165-170 (2002)

  13. K. Takizawa, T. Ishii, H. Miyasaka, H. Matsuzaka, M. Yamashita, T. Kawashima, H. Matsuzaki, H. Kishida, and H. Okamoto,
    "Crystal and electronic structures of quasi-one-dimensional halogen-bridged binuclear platinum complexes {(CnH2n+1)2 NH2}4[Pt2(pop)4I] (n=2-6)",
    Mol. Cryst. Liq. Cryst. 376, 159-164 (2002)

その他論文・著書　others

  1. 岩井伸一郎、岡本　博、十倉好紀 “光誘起協力現象の超高速ダイナミクス：擬一次元電荷移動錯体における中性-イオン性転移” 表面科学 Vol. 23, No.11, 672-680 (2002)

2001

  1. T. Kawashima, K. Takai, H. Aso, T. Manabe, K. Takizawa, C. Kachi-Terajima, T. Ishii, H. Miyasaka, H. Matsuzaka, M. Yamashita, H. Okamoto, H. Kitagawa, M. Shiro, K. Toriumi,
    "Syntheses and physical properties of quasi-one-dimensional halogen-bridged CuII-PtIV mixed-metal complexes[Cu(chxn)2][PtX2(chxn)2]X4",
    Inorg. Chem. 40, 6651-6655 (2001)

  2. H. Kishida, M. Ono, K. Miura, H. Okamoto, M. Izumi, T. Manako, M. Kawasaki, Y. Taguchi, Y. Tokura, T. Tohyama, K. Tsutsui, and S. Maekawa,
    "Large third-order optical nonlinearity of Cu-O chains investigated by third-harmonic generation spectroscopy",
    Phys. Rev. Lett. 87, 177401:1-4 (2001)

  3. T. Manako, Y. Okimoto, M. Izumi, S. Shinomori, M. Kawasaki, H. Kishida, H. Okamoto, T. Fukumura, M. Ohtani, and Y. Tokura,
    "Orientation-controlled epitaxy of A2CuO3 (A: Sr, Ca) films with large optical nonlinearity",
    Appl. Phys. Lett. 79, 1754-1756 (2001)

  4. T. Manabe, T. Ishii, H. Matsuzaka, M. Yamashita, T. Kawashima, K. Marumoto, H. Tanaka, Y. Itoh, S. Kuroda and H. Okamoto,
    "Synthesis and physical properties of halogen-bridged Ni-Pd mixed-metal complexes, Ni1-xPdx(chxn)2XY2",
    Synth. Met. 120, 925-926 (2001)

  5. T. Manabe, T. Kawashima, T. Ishii, H Matsuzaka, M. Yamashita, K. Marumoto, H. Tanaka, S. Kuroda, H. Kitagawa, T. Mitani, an H. Okamoto,
    "Syntheses and physical properties of quasi-one-dimensional chloro-bridged Ni-Pd mixed-metal MX-chain compounds, Ni1-xPdx(chxn)2Cl3 " ,
    Synth. Met. 116, 415-418 (2001)

  6. H. Kishida, K. Fujinuma, and H. Okamoto,
    "Electromodulation spectroscopy in ferroelectric CT complex: TTF-CA",
    Synth. Met. 120, 909-910 (2001)

その他論文・著書　others

  1. 岸田英夫、岡本　博 “強相関一次元系の巨大非線形光学応答” 固体物理 Vol. 36, 125-137 (2001)

  2. 岡本　博、岸田英夫 “強相関一次元遷移金属化合物における巨大非線形光学応答” 化学と工業 Vol.54(No.5), 579-584 (2001)

  3. 岡本　博、 新しい磁気と光の科学 講談社　41-68 (2001)

2000

  1. H. Kishida, M. Matsuzaki, H. Okamoto, T. Manabe, M. Yamashita, Y. Taguchi, and Y. Tokura,
    "Gigantic optical nonlinearity in one-dimensional Mott-Hubbar insulators",
    Nature 405, 929-932 (2000)

  2. T. Kawashima, S. Miya, T. Manabe, M. Yamashita,K. Takizawa,T. Ishii, H. Matsuzaka, T. Sonoyama,H. Kitagawa,T. Mitani,H. Matsuzaki, H. Kishida, H. Okamoto, and R. Ikeda,
    " Charge fluctuation in quasi-one-dimensional halogen-bridged platinum binuclear mixed-valence compounds, A4[Pt2(pop)4I]・nH2O ",
    Mol.Cryst.Liq.Cryst. 342,145-150 (2000)

  3. H. Okamoto, H. Kishida, M. Ono, H. Matsuzaki, M. Yamashita, and T. Manabe,
    "Photoexcitations in the strongly correlated 1D electron system of halogen-bridged Ni compounds",
    J. Lumin. 87-89, 204-206 (2000)

その他論文・著書　others

  1. 岡本　博 “一次元系におけるソリトン、ポーラロン、励起子の光反応ダイナミクス”
    日本物理学会誌 Vol. 55, 31-36 (2000)

1999

  1. M. Yamashita, T. Ishii, H. Matsuzaka, T. Manabe, T. Kawashima, H. Okamoto, H. Kitagawa, T. Mitani, K. Marumoto,and S. Kuroda,
    “Tuning of Charge Density Wave Strengths by Competition between Electron-Phonon Interaction of PdⅡ-PdⅣ Mixed-Valence States and Electron Correlation of NiIII States in Quasi-One-Dimensional Bromo-Bridged Ni-Pd Mixed-Metal MX Chain Conpounds Ni1-xPdx(chxn)2Br3”.
    Inorg. Chem. 38, 5124-5130 (1999)

  2. M. Yamashita, T. Manabe, T. Kawashima, H. Okamoto, and H. Kitagawa,
    “Electronic Structures of Quasi-One-Dimensional Halogen-Bridged NiIII Complexes with Strong Electron-Correlations”,
    Coord. Chem. Rev. 190-192, 309-330 (1999)

  3. T. Kawashima, T. Manabe, M. Yamashita, K. Toriumi, H. Kitagawa, T. Mitani, H. Okamoto, K. Inoue, Y. Hosokoshi, and M. Shiro,
    “Syntheses and Physical Properties of Quasi-One-Dimensional Halogen-Bridged CuII-PtIV Mixed-Metal MX-Chain Compounds”,
    Synth. Met. 103, 2648-2649 (1999)

  4. M. Yamashita, T. Manabe, K. Inoue, T. Kawashima, H. Okamoto, H. Kitagawa, T. Mitani, K. Toriumi, H. Miyamae,and R. Ikeda,
    “Tuning of Spin Density Wave Strengths of Quasi-One-Dimensional Halogen -Bridged NiIII Complexes with Strong Electron Correlation, [NiIII(chxn)2X]Y2”,
    Inorg. Chem. 38, 1894-1899 (1999)

  5. M. Yamashita, S. Miya, T. Kawashima, T. Manabe, T. Sonoyama, H. Kitagawa, T. Mitani, H. Okamoto, and R. Ikeda,
    “Charge Fluctuation in MMX Chain Compounds, A4[Pt2(pop)4I].nH2O”,
    J. Am. Chem. Soc. 121, 2321-2322 (1999)

  6. T. Manabe, T. Kawashima, M. Yamashita, Y. Kaga, H. Okamoto, H. Kitagawa, and T. Mitani,
    “Competition between Electron-Phonon Interaction and Electron-Correlation in Ni-Pd Mixed-Metal MX Chain Compounds”,
    Synth. Met. 102, 1779-1780 (1999)

その他論文・著書　others

  1. 岡本　博、 実験物理学講座8 分光測定 丸善 202-219 (1999)

1998

  1. K. Egawa, T. Ohtsuki, M. Takahashi, J.X. Shen, H. Okamoto, and Y. Oka,
    “Ultrafast Exciton Dynamics in Cd1-xMnxTe/ZnTe Quantum Wells”,
    The Physics of Semiconductors, (World Scientific, 1998) Tu3-A9

  2. Y. Oka, S. Takano, K. Egawa, K. Matsui, H. Okamoto, K. Yanata, and M. Takahashi,
    “Magneto-optical properties and exciton dynamics in Cd1-xMnxSe quantum dots and Cd1-xMnxTe/ZnTe quantum wells” ,
    Institute of Physics Conf. Ser. 152, 503-506 (1998)

  3. Y. Oka, K. Yanata, H. Okamoto, M. Takahashi, and J.X. Shen,
    “Giant Magneto-Optical Effects in Diluted Magnetic Semiconductor Nanostructures”.
    Solid State Electronics, 42, 1267-1271 (1998)

  4. H. Okamoto and M. Yamashita,
    “Solitons, Polarons, and Excitons in Quasi-One-Dimensional Halogen-Bridged Transition Metal Compounds”,
    Bull. Chem. Soc. Jpn. Accounts, 71, 2023-2039 (1998)

  5. Y. Oka, K. Yanata, S. Takano, K. Egawa, K. Matsui, M. Takahashi, and H. Okamoto,
    “Exciton Dynamics in Diluted Magnetic II-VI Semiconductor Nanostructures”,
    J. Crystal Growth184/185, 926-930 (1998)

  6. H. Okamoto, K. Egawa, M. Takahashi, and Y. Oka,
    “Dynamics of Exciton Magnetic Polaron in the Cd1-xMnxTe/ZnTe Quantum Wells”,
    J. Lumin. 76/77, 211-213 (1998)

  7. H. Okamoto, Y. Kaga, Y. Shimada, Y. Oka, Y. Iwasa, T. Mitani, and M. Yamashita,
    “Conversion of Excitons to Spin-Soliton Pairs in Quasi-One-Dimensional Halogen-Bridged Metal Complexes”,
    Phys. Rev. Lett. 80, 861-864 (1998)

1997

  1. K. Egawa, T. Ohtsuki, M. takahashi, J.X. Shen, H. Okamoto, Y. Oka,
    “Ultrafast Exciton Dynamics in Cd1-xMnxTe/ZnTe Quantum Wells”,
    The Physics of Semiconductors (World Scientific 1997)

  2. Y. Oka, K. Matsui, S. Takano, T. Hisatsugu, H. Okamoto, M. Takahashi,
    “Ultrafast Dynamics of Excitons in Cd1-xMnxTe/ZnTe (x=0-0.2) Quantum Wells”,
    High Magnetic Fields in the Physics of Semiconductors II (World Scientific 1997) p553-556.

  3. H. Oshio, H. Okamoto, T. Kikuchi, and T. Ito,
    “The Ferromagnetic Chain System catena-(μ-CrO4-0,0’)[NiII(cyclam)]・2H2O”,
    Inorg. Chem. 36, 3201-3203 (1997)

  4. Y. Oka, H. Okamoto, S. Takano, K. Egawa, Y. Matsui, K. Yanata, and M. Takahashi,
    “Magneto-Optical Properties and Exciton Dynamics in Nanostructure Diluted Magnetic Semiconductors: Cd1-xMnxSe QDs and Zn1-xCdxSe/ZnSe Quantum Wells”,
    Journal of Surface Analysis 3, 524-528 (1997)

  5. H. Okamoto, Y. Oka, T. Mitani, and M. Yamashita,
    “Dynamics of Solitons and Polarons in the Quasi-one-dimensional MX Chain Compound [Pt(en)2][Pt(en)2I2](ClO4)4s”,
    Phys. Rev. B 55, 6330-6334 (1997)

  6. T. Manabe, T. Kawashima, M. Yamashita, H. Okamoto, H. Kitagawa, T. Mitani, M. Inokuchi, and K. Yakushi,
    “Competition between Electron-correlation in Ni(III) and Electron-lattice Interaction in Pd(II)-Pd(IV) in Mixed-metal MX-chain, Ni1-xPdx(chxn)2Br3”,
    Synth. Met. 86, 2233-2234 (1997)

  7. N. Kimura, S. Ishimaru, H. Okamoto, M. Yamashita, and R. Ikeda,
    “Spin Solitons in Halogen-bridged 1-D Pt Complexes”,
    Synth. Met. 86, 2151-2152 (1997)

  8. H. Okamoto, A. Chainani, T. Takahashi, H. Kitagawa, T. Mitani, T. Manabe, and M. Yamashita,
    “Determination of the Electronic Structure in Strongly Correlated 1-D Electron Systems : X-ray Photoelectron and Auger Spectroscopy of Halogen-bridged Nickel Complexes”,
    Synth. Met. 86, 2139-2140 (1997)

  9. H. Okamoto, Y. Shimada, Y. Kaga, Y. Oka, M. Yamashita, T. Manabe, and T. Mitani,
    “Dynamics of Photoinduced Gap States and Self-trapped Excitons in the MX Chain Compounds with Degenerate and Non-degenerate CDW Ground States”,
    Synth. Met. 86, 1923-1926 (1997)

  10. T. Sekikawa, H. Okamoto, T. Mitani, T. Inabe, Y. Maruyama, and T. Kobayashi,
    “Spin-0 Soliton Formation in Spin-Peierls Systems : Charge-transfer Complexes DAP-TCNQ and DAP-DMTCNQ”,
    Phys. Rev. B 55, 4182-4190 (1997)

  11. H. Okamoto,
    “Solitons, Polarons and Excitons in MX Chains”,
    Springer Series in Solid-State Science 124, 83-91 (1997)

  12. H. Okamoto, T. Hisatsugu, M. Takahashi, and Y. Oka,
    “Magnetic Tuning of Carrier Tunneling Process in the Cd1-xMnxTe/ZnTe Asymmetric Double Quantum Wells”,
    The Physics of Semiconductors, ed. M. Scheffler and R. Zimmermann, Vol. 3, pp.2239-2242 (World Scientific 1997)

1996

  1. H. Okamoto, Y. Shimada, Y. Oka, A. Chainani, T. Takahashi, H. Kitagawa, T. Mitani, K. Toriumi, K. Inoue, T. Manabe, and M. Yamashita,
    “Electronic Structure of the Quasi-one-dimensional Halogen-bridged Ni Complexes [Ni(chxn)2X]X2 (X=Cl, Br) and Related Ni Compounds”,
    Phys. Rev. B 54, 8438-8445 (1996)

  2. H. Okamoto, Y. Oka, T. Mitani, M. Yamashita, and K. Toriumi,
    “Photoexcitations in MX Chains : Dynamics of Solitons and Polarons in [Pt(en)2][Pt(en)2I2](ClO4)4”,
    Mol. Cryst. Liq. Cryst. 285, 303-310 (1996)

1995

  1. K. Inoue, M. Yamashita, T. Furuta, A. Ichikawa, T. Ohisi, H. Okamoto, N. Kimura, H. Ohki, R. Ikeda, S. Bandow, K. Toriumi, T. Mitani, H. Kitagawa, and H. Miyamae,
    "Structural Control of Quasi-One-Dimensional Halogen-Bridged Nickel Complexes",
    Synth. Met. 71, 1913-1914 (1995)

  2. T. Sekikawa, T. Kobayashi, H. Okamoto, T. Mitani, T. Inabe, and Y. Maruyama,
    "Mid-Gap State of the Quasi-One-Dimensional Mott-Hubbard System:Charge Transfer Complex Composed of 1,6-Pyrenediamine and Tetracyanoquinodimethane (DAP-TCNQ)",
    Synth. Met. 70, 1213-1214 (1995)

  3. H. Okamoto, K. Tsuzuki, M. Nogaku, T. Hisatsugu, M. Takahashi, and Y. Oka,
    "Magneto-Optical Studies on Exciton States in the Cd1-xMnxTe/ZnTeSuperlattices",
    The Physics of Semiconductors, ed. D.J. Lockwood Vol. 3, pp.2525-2528 (World Scientific 1995)

1994

  1. M. Yamashita, K. Inoue, T. Furuta, A. Ichikawa, H. Okamoto, N. Kimura, H. Ohki, R. Ikeda, H. Kitagawa, S. Bandow, K. Toriumi, T. Mitani, T. Ohishi, and H. Miyamae,
    "Control of Charge Instabilities in Quasi-One-Dimensional Halogen-Bridged Nickel Compounds",
    Mol. Cryst. Liq. Cryst. 256, 179-186 (1994)

  2. H. Okamoto, Y. Oka, T. Mitani, K. Toriumi, and M. Yamashita,
    "Photo-Generation of Solitons and Polarons in MX Chains",
    Mol. Cryst. Liq. Cryst. 256, 161-170 (1994)

1993

  1. H. Okamoto, K. Suzuki, K. Tsuzuki, M. Takahashi, and Y. Oka,
    "Optical Study of Localized Exciton States in CdTe/ZnTe Superlattices",
    Jpn. J. Appl. Phys. 32, 746-748 (1993)

  2. T. Terashima, N. Kojima, H. Kitagawa, H. Okamoto, and T. Mitani,
    "Optical Reflectivity Spectra of Incommensurate Layer Compounds, (CeS)1.2NbS2 and (CeS)0.6NbS2",
    J. Phys. Soc. Jpn. 62, 2166-2173 (1993)

  3. H. Okamoto and T. Mitani,
    "Photo-Generation of Solitons and Polarons in the Quasi-1-D MX Compounds",
    Progress of Theoretical Physics Supplement 113, 191-201 (1993)

  4. H. Kitagawa, H. Okamoto, T. Mitani, and M. Yamashita,
    "New Type of H-Bonded CT Complexes : [M(H2DAG)(HDAG)]TCNQ (M=Ni, Pd, Pt)",
    Mol. Cryst. Liq. Cryst. 228, 155-160 (1993)

  5. T. Inabe, K. Okaniwa, H. Ogata, H. Okamoto, T. Mitani, andY. Maruyama,
    "Crystal Structure and Transport Properties of a Hydrogen-Bonded 1:1 Charge-Transfer Complex Composed of 1,6-Pyrenediamine and 7,7,8,8-Tetracyano-quinodimethane (DAP-TCNQ)",
    Acta Chimica Hungarica-Models in Chemistry 130, 537-554 (1993)

  6. M. Yamashita, E. Tsuruta, K. Inoue, T. Furuta, H. Okamoto, T. Mitani, K. Toriumi, H. Ohki, and R. Ikeda,
    "Halogen-Bridged One-Dimensional NiII-NiIV Mixed-Valence State and NiIII Mott-Hubbard State",
    Synth. Met. 56, 3461-3468 (1993)

  7. H.. Kitagawa, T. Mitani, J. Toyoda, K. Nakasuji, H. Okamoto, and M. Yamashita,
    "A New Two-Band System of d and p with Interband H Bridges",
    Synth. Met. 56, 1783-1786 (1993)

  8. H. Okamoto, T. Mitani, K. Toriumi, and M. Yamashita,
    "FTIR Study of Photo-Induced Gap States in the MX Compounds",
    Synth. Met. 55, 524-529 (1993)

その他論文・著書　others

  1. 岡本 博、三谷洋興、 “擬一次元ハロゲン架橋金属錯体における電子状態の制御と光物性” 固体物理 Vol.28, 407-421 (1993)

  2. 岡本 博、 “実験化学講座12 物質の機能性” 丸善223-237 (1993)

1992

  1. H. Okamoto, T. Mitani, K. Toriumi, and M. Yamashita,
    "Photogeneration of Solitons and Polarons in 1-D Halogen-Bridged Metal Complexes",
    Phys. Rev. Lett. 69, 2248-2251 (1992)

  2. K. Sugiura, J. Toyoda, H. Okamoto, K. Okaniwa, T. Mitani, A. Kawamoto, J. Tanaka and K. Nakasuji,
    "Der dreidimensionale Aufbau von unsymmetrischen Protonen-Elektronen-Transfersystemen mit Disulfidbrucke - der Bis(4-hydroxyphenyl)disulfid-Benzochinon-Komplex",
    Angew. Chem. 104, 877-879 (1992)

  3. K. Sugiura, J. Toyoda, H. Okamoto, K. Okaniwa, T. Mitani, A. Kawamoto, J. Tanaka and K. Nakasuji,
    "Three-Dimensional Structure of an Unsymmetrical Proton?Electron Transfer System Containing a Disulfide Bond: The Bis(4-hydroxy-phenyl)disulfide-Benzoquinone Complex",
    Angew. Chem. Int. Ed. 31, 852-854 (1992)

  4. H. Okamoto, T. Mitani, K. Toriumi, and M. Yamashita,
    "Control of CT Instability in 1-D Mixed-Valence Systems",
    Mol. Cryst. Liq. Cryst. 218, 247-252 (1992)

  5. N. Hoshino H. Takahashi, Y. Matsunaga, H. Okamoto, and T. Mitani,
    "Thermotropic Mesophases of Benzene Derivatives with Terminally Hydroxylated Groups",
    Mol. Cryst. Liq. Cryst. 216, 265-268 (1992)

  6. K. Okaniwa, H. Okamoto, T. Mitani, T. Inabe, J. Toyoda, Y. Morita, K. Nakasuji, H. Yamamoto, T. Deno, and S. Honma,
    "Intra- and Inter-Molecular Charge Transfer Interactions in H-Bonded DTPP Crystals",
    Mol. Cryst. Liq. Cryst. 216, 241-246 (1992)

  7. T. Inabe, K. Okaniwa, H. Okamoto, T. Mitani, Y. Maruyama, and S. Takeda,
    "Proton Transfer in N-Salicylideneanilines -Effect of Charge-Transfer Interaction",
    Mol. Cryst. Liq. Cryst. 216, 229-234 (1992)

  8. K.Nakasuji, K. Sugiura, J. Toyoda, Y. Morita, H. Okamoto, K. Okaniwa, and T. Mitani,
    "Cooperative Proton-Electron Transfer (PET) Systems as New Molecu-lar Systems",
    Mol. Cryst. Liq. Cryst. 216, 213-216 (1992)

  9. T. Mitani, H. Kitagawa, H. Okamoto, K. Nakasuji, J. Toyota, and M. Yamashita,
    "A New Molecular System : Cooperation of Transition Metal Chain and CT Stack via Inter-Molecular H-Bonds",
    Mol. Cryst. Liq. Cryst. 216, 73-77 (1992)

  10. A. Ugawa, H. Ishii, K. Yakushi, H. Okamoto, T. Mitani, M. Watanabe, T. Sakai, K. Suzui, and S. Kato,
    "Design of an Instrument for Far-Infrared Microspectroscopy Using a Synchrotron Radiation Source",
    Rev. Sci. Instrum. 63, 1551-1554 (1992)

  11. H. Okamoto, T. Mitani, K. Toriumi, and M. Yamashita,
    "Control of CDW State in Halogen-Bridged Metal Complexes",
    Materials Science and Engineering B 13, L9-L14 (1992)

1991

  1. H. Okamoto, T. Mitani, Y. Tokura, S. Koshihara, T. Komatsu, Y. Iwasa, T. Koda, and G. Saito,
    "Anomalous Dielectric Response in Tetrathiafulvalene-p-Chloranil as Observed in Temperature-and Pressure-Induced Neutral-to-Ionic Phase Transition",
    Phys. Rev. B 43, 8224-8232 (1991)

  2. H. Okamoto, K. Toriumi, K. Okaniwa, T. Mitani, and M. Yamashita,
    "A New 1-D Conducting State Stabilized by Strong H-Bondings in Halogen-Bridged Metal Complexes",
    Synth. Met. 42, 2791-2794 (1991)

  3. T. Inabe, I. Gautier-Luneau, N. Hoshino, K. Okaniwa, H. Okamoto, T. Mitani, U. Nagashima, and Y, Maruyama,
    "Structure and Optical Properties of Thermochromic Schiff Bases. Charge Transfer Interaction and Proton Transfer in the N-Tetrachloro-salicylideneaniline and N-Tetrachlorosalicylidene-l-pyrenylamine Crystals",
    Bull. Chem. Soc. Jpn. 64, 801-810 (1991)

  4. K. Okaniwa, H. Okamoto, T. Mitani, K. Toriumi, and M. Yamashita,
    "IR Study of the H-Bond Coupled with the Mixed-Valence State of Halogen-Bridged Metal Complexes",
    J. Phys. Soc. Jpn. 60, 997-1004 (1991)

  5. K. Nakasuji, K. Sugiura, T. Kitagawa, J. Toyoda, H. Okamoto, K. Okaniwa, T. Mitani, H. Yamamoto, I. Murata, A. Kawamoto, and J. Tanaka,
    "Exploration of New Cooperative Proton-Electron Transfer (PET) Systems. First Example of Extended Conjugated Quinhydrones:1,5-Dihalo-2,6-Naphtho-quinhydrones",
    J. Am. Chem. Soc. 113, 1862-1864 (1991)

  6. H. Okamoto, K. Okaniwa, T. Mitani, K. Toriumi, and M. Yamashita,
    "Photo-Induced Gap State in the Mott-Hubbard System of Halogen-Bridged Ni3+ Complex ({Ni(chxn)2Br}Br2)",
    Solid State Commun. 77, 465-469 (1991)

1990

  1. H. Okamoto, K. Toriumi, T. Mitani, and M. Yamashita,
    "Optical and Magnetic Properties of the Halogen-Bridged Metal Complexes Modified by Hydrogen Bondings: {M(1R,2R-cyclohexane-diamine)2Br}Br2 (M=Pt, Pd, and Ni)" ,
    Phys. Rev. B 42, 10381-10387 (1990)

  2. K. Toriumi, H. Okamoto, T. Mitani, S. Bandow, M. Yamashita, Y. Wada, Y. Fujii, R.J.H. Clark, D.J. Michael, A.J. Edward, D. Watkin, M. Kurmoo, and P. Day,
    "Syntheses, Structures, and Solid State Properties of One-Dimensional Halogen-Bridged NiIII-X-NiIII Compounds (X=Cl and Br)" ,
    Mol. Cryst. Liq. Cryst. 181, 333-342 (1990)

その他論文・著書　others

  1. 岡本 博、“有機電荷移動錯体結晶の構造相転移と赤外分光”
    日本物理学会誌 Vol. 45, 567-570 (1990)

1989

  1. Y. Tokura, S. Koshihara, Y. Iwasa, H. Okamoto, T. Komatsu, T. Koda, N. Iwasawa, and G. Saito,
    "Domain-Wall Dynamics in Organic Charge-Transfer Compounds with One-Dimensional Ferroelectricity" ,
    Phys. Rev. Lett. 63, 2405-2408 (1989)

  2. K. Awaga, H. Okamoto, T. Mitani, Y. Maruyama, T. Sugano, and M. Kinoshita,
    "Spin-Soliton Excitation in One-Dimensional Alternating Antiferromagnetic System of Galvinoxyl Single Crystal" ,
    Solid State Commun. 71, 1173-1177 (1989)

  3. T. Mitani, H. Okamoto, Y. Takagi, M. Watanabe, K. Fukui, S. Koshihara, and C. Ito,
    "Delay-Time Modulation Spectroscopy Using a CW Mode-Locked Nd:YAG Laser Synchronized with the Synchrotron Radiation Pulses" ,
    Rev. Sci. Instrum. 60, 1569-1572 (1989)

  4. H. Okamoto, T. Koda, Y. Tokura, T. Mitani, and G. Saito,
    "Pressure-Induced Neutral-to-Ionic Phase Transition in Organic Charge-transfer Crystals of Tetrathiafulvalene-p-Benzoquinone Derivatives" ,
    Phys. Rev. B 39, 10693-10701 (1989)

その他論文・著書　others

  1. 三谷洋興、稲辺 保、岡本 博、“有機結晶における電子およびプロトン移動の制御” 応用物理 Vol.58, 1014-1027 (1989)

1988

  1. T. Mitani, H. Okamoto, Y. Takagi, I. Yamazaki, M. Watanabe, K. Fukui, S. Koshihara, and C. Ito,
    "Application of the Time Characteristics of Synchrotron Radiation to Transient Spectroscopy" ,
    Springer Series in Chemical Physics 48, 410-412 (1988)

  2. H. Okamoto, T. Komatsu, Y. Iwasa, T. Koda, Y. Tokura, S. Koshihara, T. Mitani, and G. Saito,
    "Dynamical Aspects of Neutral-to-Ionic Phase Transition in Organic Charge-transfer Complex Crystals" ,
    Synth. Met. 27, 189-196 (1988)

  3. Y. Tokura, H. Okamoto, T. Koda, T. Mitani, and G. Saito,
    "Nonlinear Electric Transport and Switching Phenomenon in the Mixed-Stack Charge-Transfer Crystal Tetrathiafulvalene-p-Chloranil",
    Phys. Rev. B 38, 2215-2218 (1988)

1987

  1. K. Takaoka, Y. Kaneko, H. Okamoto, Y. Tokura, T. Koda, T. Mitani, and G. Saito,
    "Infrared Molecular-Vibration Spectra of Tetrathiafulvalene-Chloranil Crystal at Low Temperature and High Pressure" ,
    Phys. Rev. B 36, 3884-3887 (1987)

  2. H. Okamoto, Y. Tokura, and T. Koda,
    "Optical Study of Structural Phase Transition in Organic Charge-Transfer Crystals K- and Rb-Tetracyanoquinodimethane" ,
    Phys. Rev. B 36, 3858-3867 (1987)

  3. H. Okamoto, Y. Tokura, T. Koda, and G. Saito,
    "Molecular Vibrational Spectroscopy of Structural Phase Transitions in Organic Charge Transfer Crystals" ,
    Synth. Met. 19, 527-532 (1987)

1986

  1. Y. Tokura, H. Okamoto, T. Koda, T. Mitani, and G. Saito,
    “Domain Wall Dynamics in Mixed-Stack Charge-Transfer Crystal”,
    Phys. B 143, 527-529 (1986)

  2. Y. Tokura, H. Okamoto, T. Koda, T. Mitani, and G. Saito,
    "Pressure-Induced Neutral-to-Ionic Phase Transition in TTF-p-Chloranil Studied by Infrared Vibrational Spectroscopy" ,
    Solid State Commun. 57, 607-610 (1986)

1985

  1. Y. Tokura, Y.Kaneko, H.Okamoto, S.Tanuma, T.Koda, T.Mitani, and G.Saito,
    “Spectroscopic Study of the Neutral-to-Ionic Phase Transition in TTF-Chloranil”,
    Mol. Cryst. Liq. Cryst. 125, 71-80 (1985)

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