極限環境下の分子性導体における集団的な電荷ダイナミクスの理論

• Project/Area Number: 15073224
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Institute for Molecular Science (2004-2007); Okazaki National Research Institutes (2003)
• Principal Investigator: 米満 賢治 Institute for Molecular Science, 理論・計算分子科学研究領域, 准教授 (60270823)
• Co-Investigator(Kenkyū-buntansha): 山下 靖文 分子科学研究所, 理論・計算分子科学研究領域, 助教 (50390646) ; 岸根 順一郎 九州工業大学, 工学部, 助教授 (80290906)
• Project Period (FY): 2003 – 2007
• Project Status: Completed (Fiscal Year 2007)
• Budget Amount: ¥15,000,000 (Direct Cost: ¥15,000,000); Fiscal Year 2007: ¥1,900,000 (Direct Cost: ¥1,900,000); Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000); Fiscal Year 2005: ¥4,600,000 (Direct Cost: ¥4,600,000); Fiscal Year 2004: ¥2,000,000 (Direct Cost: ¥2,000,000); Fiscal Year 2003: ¥4,600,000 (Direct Cost: ¥4,600,000)
• Keywords: 電荷秩序 / 長距離クーロン相互作用 / 電子格子相互作用 / 光誘起融解 / 金属絶縁体界面 / 仕事関数 / 整流作用 / 集団運動 / 分子性導体 / 光誘起相転移 / 電荷秩序融解転移 / 絶縁体金属転移 / コヒーレントフォノン / スピン・パイエルス転移 / 有機電荷移動錯体 / イオン性中性相転移 / 量子常誘電体 / 電荷移動揺らぎ / ハロゲン架橋金属錯体 / 光誘起絶縁体金属転移 / アルカリTCNQ / 光誘起逆スピン・バイエルス転移 / 電界効果トランジスタ / ショットキー障壁 / 仕事関数差 / 両極的電界効果特性 / 中性イオン性相転移 / 強誘電転移 / マスター方程式 / 光誘起緩和現象 / 交互積層型電荷移動錯体 / 時間依存量子発展方程式 / 多重臨界点 / 電歪効果 / パイエルス・ハバード / ブルーム・エメリー・グリフィス

Research Abstract

α型およびθ型有機塩(BEDT-TTF)_2Xの電荷秩序相転移の詳細比較: 2次元1/4フィリング系のα型およびθ型のBEDT-TTF塩は、ともに長距離クーロン相互作用が効いて、低温で電荷秩序をもつ。しかしθ型は電子格子相互作用なしでは、低温での結晶構造も水平ストライプ型の電荷秩序も再現されないこと、分子回転によるトランスファー積分の変調が効くこと、α型は電子格子相互作用の影響が小さいことを示した。どちらの塩も不連続転移をするが、θ型はとびが大きく、α型はとびが小さいことも理論的に再現する。θ型では高温で3倍周期の電荷相関をもつことと関係している。これらを基に、電荷秩序の光誘起融解ダイナミクスにおける格子効果の違いを示した。
金属絶縁体界面を通した電荷輸送特性の絶縁機構による違い:金属と絶縁体を接すると、一般に仕事関数が異なるためにショットキー障壁が生じる。通常のバンド絶縁体の場合は、電圧の向きによって電流の絶対値が大きく変わる整流作用が現れ、モット絶縁体の場合は、整流作用が抑制されることを示した。界面付近のポテンシャル変化を求める際に、電子密度とポテンシャルの関係を仮定することにより解析的にポワソン方程式の解を求め、それを用いた量子的時間発展計算を行った。
バンド絶縁体とモット絶縁体の電流電圧特性を実験結果と比較し、非常に良い一致をみた。さらにこの結果を、非平衡グリーン関数により解析し、モット絶縁体の場合は界面とバルクの電子状態が密接に関連していることを示した。

Research Products

• [Journal Article] Charge Order with Structural Distortion in Organic Conductors : Comparison between □-(ET)_2RbZn(SCN)_4 and □-(ET)_2I_3 (2008)
  • Author(s): Y. Tanaka, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 77 Pages: 34708-34708
  • Peer Reviewed
• [Journal Article] Polaronic States with Spin-Charge-Coupled Excitation in a One-Dimensional Dimerized Mott Insulator K-TCNQ (2008)
  • Author(s): N. Maeshima, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 77 Pages: 74713-74713
  • NAID: 110006821323
  • Peer Reviewed
• [Journal Article] Theory of Photoinduced Phase Transitions in Itinerant Electron Systems (2008)
  • Author(s): K. Yonemitsu, K. Nasu
  • Journal Title: Physics Reports 465 Pages: 1-60
  • Peer Reviewed
• [Journal Article] Photoinduced Change in the Charge Ordering Pattern in the Quarter-Filled Organic Conductor(EDO-TTF)_2PF_6 with a Strong Electron-Phonon Interaction (2008)
  • Author(s): K. Onda, S. Ogihara, K. Yonemitsu, N. Maeshima, T. Ishikawa, Y. Okimoto, X. Shao, Y. Nakano, H. Yamochi, G. Saito, S. Koshihara
  • Journal Title: Physical Review Letters 101 Pages: 67403-67403
  • Peer Reviewed
• [Journal Article] Spin and Charge Fluctuations and Lattice Effects on Charge Ordering in α-(BEDT-TTF)_2I_3 (2008)
  • Author(s): S. Miyashita, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 77 Pages: 94712-94712
  • NAID: 110006933497
  • Peer Reviewed
• [Journal Article] Enhanced Coherent Dynamics near a Transition between Neutral Quantum-Paraelectric and Ionic Ferroelectric Phases in the Quantum Blume-Emery-Griffiths Model (2008)
  • Author(s): K. Yonemitsu
  • Journal Title: Physical Review B 78 Pages: 205102-205102
  • Peer Reviewed
• [Journal Article] Modified Barrett Formula near the Neutral-Ionic Quantum Phase Transition (2008)
  • Author(s): Y. Yamashita, K. Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 132 Pages: 12019-12019
  • Peer Reviewed
• [Journal Article] Charge Order with Structural Distortion in Organic Conductors: Comparisonbetween θ-(ET)_2 RbZn(SCN)_4 and α-(ET)_2 I_3 (2008)
  • Author(s): Y. Tanaka and K. Yonemitsu
  • Journal Title: J. Phys. Soc. Jpn. 77
  • NAID: 110006633490
  • Peer Reviewed
• [Journal Article] Effects of Electron-Lattice Coupling on Charge Order in θ-(ET)_2X (2007)
  • Author(s): Y. Tanaka, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 76 Pages: 53708-53708
  • NAID: 110006273180
  • Peer Reviewed
• [Journal Article] Charge Ordering in θ(BEDT-TTF)_2RbZn(SCN)_4 : Cooperative Effects of Electron Correlations and Lattice Distortions (2007)
  • Author(s): S. Miyashita, K. Yonemitsu
  • Journal Title: Physical Review B 75 Pages: 245112-245112
  • Peer Reviewed
• [Journal Article] Charge-Transfer Excitations in One-Dimensional Dimerized Mott Insulators (2007)
  • Author(s): N. Maeshima, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 76 Pages: 74713-74713
  • NAID: 110006350777
  • Peer Reviewed
• [Journal Article] Relaxation Process in the Photoinduced Neutral-Ionic Paraelectric- Ferroelectric Phase Transition in Tetrathiafulvalene-p-Chloranil (2007)
  • Author(s): H. Inoue, K. Yonemitsu
  • Journal Title: Physical Review B 75 Pages: 235125-235125
  • Peer Reviewed
• [Journal Article] Photoinduced Melting of Charge Order in a Quarter-Filled Electron System Coupled with Different Types of Phonons (2007)
  • Author(s): K. Yonemitsu, N. Maeshima
  • Journal Title: Physical Review B 76 Pages: 75105-75105
  • Peer Reviewed
• [Journal Article] Suppression of Rectification at Metal-Mott-Insulator Interfaces (2007)
  • Author(s): K. Yonemitsu, N. Maeshima, T. Hasegawa
  • Journal Title: Physical Review B 76 Pages: 235118-235118
  • Peer Reviewed
• [Journal Article] Effects of Electron-Lattice Coupling on Charge Order in θ(ET)_2X (2007)
  • Author(s): Y. Tanaka and K. Yonemitsu
  • Journal Title: J. Phys. Soc. Jpn. 76
  • NAID: 110006273180
  • Peer Reviewed
• [Journal Article] Chareg Ordering in θ(BEDT-TTF)_2 RbZn(SCN)_4: Cooperative Effects of Electron Correlations and Lattice Distortions (2007)
  • Author(s): S. Miyashita and K. Yonemitsu
  • Journal Title: Phys. Rev. B 75
  • Peer Reviewed
• [Journal Article] Charge-Transfer Excitations in One-Dimensional Dimerized Mott Insulators (2007)
  • Author(s): N. Maeshima and K. Yonemitsu
  • Journal Title: J. Phys. Soc. Jpn 76
  • NAID: 110006350777
  • Peer Reviewed
• [Journal Article] Relaxation Process in the Photoinduced Neutral-Ionic Paraelectric Ferroelectric Phase Transition in Tetrathiafulvalene-p-Chloranil (2007)
  • Author(s): H. Inoue and K. Yonemitsu
  • Journal Title: Phys. Rev. B 75
  • Peer Reviewed
• [Journal Article] Photoinduced Melting of Charge Order in a Quarter-Filled Electron System Coupled with Different Types of Phonons (2007)
  • Author(s): K. Yonemitsu and N. Maeshima
  • Journal Title: Phys. Rev. B 76
  • Peer Reviewed
• [Journal Article] Suppression of Rectification at Metal-Mott-Insulator Interfaces (2007)
  • Author(s): K. Yonemitsu, N. Maeshima and T. Hasegawa
  • Journal Title: Phys. Rev. B 76
  • Peer Reviewed
• [Journal Article] Theory of Optical Responses of Photoexcited Halogen-Bridged Metal Complexes in Different Insulating Phases (2007)
  • Author(s): N. Maeshima and K. Yonemitsu
  • Journal Title: Multifunctional Conducting Molecular Materials Pages: 185-188
  • Peer Reviewed
• [Journal Article] Mechanism of Ambipolar Field-Effect Transistors on One-Dimensional Organic Mott Insulators (2007)
  • Author(s): K. Yonemitsu
  • Journal Title: Multifunctional Conducting Molecular Materials Pages: 276-281
  • Peer Reviewed
• [Journal Article] 光で電子を一斉に動かし物性を変えるしくみの理論 (2007)
  • Author(s): 米満賢治
  • Journal Title: 光アライアンス 18 Pages: 29-33
• [Journal Article] Theory of Photoinduced Phase Transitions (2006)
  • Author(s): K. Yonemitsu, K. Nasu
  • Journal Title: Journal of the Physical Society of Japan 75 Pages: 11008-11008
  • NAID: 110003482807
  • Peer Reviewed
• [Journal Article] Interchain Coupling Effects on Photoinduced Phase Transitions between Neutral and Ionic Phases in an Extended Hubbard Model with Alternating Potentials and an Electron-Lattice Coupling (2006)
  • Author(s): K. Yonemitsu
  • Journal Title: Physical Review B 73 Pages: 155120-155120
  • Peer Reviewed
• [Journal Article] Possibility of Field-Induced Incommensurate Order in a Quasi-One-Dimensional Frustrated Spin System (2006)
  • Author(s): N. Maeshima, K. Okunishi, K. Okamoto, T. Sakai, K. Yonemitsu
  • Journal Title: Journal of Physics : Condensed Matter 18 Pages: 4819-4826
  • Peer Reviewed
• [Journal Article] Dynamics of Photoexcited States in One-Dimensional Dimerized Mott Insulators (2006)
  • Author(s): N. Maeshima, K. Yonemitsu
  • Journal Title: Physical Review B 74 Pages: 155105-155105
  • Peer Reviewed
• [Journal Article] Phase Diagram of the Excitonic Insulator (2006)
  • Author(s): B. Hulsen, F. X. Bronold, H. Fehske, K. Yonemitsu
  • Journal Title: Physica B 378-380 Pages: 267-268
  • Peer Reviewed
• [Journal Article] Interchain-Coupling Effects on Photoinduced Neutral-Ionic Transition Dynamics in Mixed-Stack Charge-Transfer Complexes (2006)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of Low Temperature Physics 142 Pages: 499-502
  • Peer Reviewed
• [Journal Article] Theory of Photoinduced Phase Transitions (2006)
  • Author(s): K.Yonemitsu, K.Nasu
  • Journal Title: Journal of the Physical Society of Japan 75
  • NAID: 110003482807
• [Journal Article] Interchain Coupling Effects on Photoinduced Phase Transitions between Neutral and Ionic Phases in an Extended Hubbard Model with Alternating Potentials and an Electron-Lattice Coupling (2006)
  • Author(s): K.Yonemitsu
  • Journal Title: Physical Review B 73
• [Journal Article] Possibility of Field-Induced Incommensurate Order in a Quasi-One-Dimensional Frustrated Spin System (2006)
  • Author(s): N.Maeshima, K.Okunishi, K.Okamoto, T.Sakai, K.Yonemitsu
  • Journal Title: Journal of Physics : Condensed Matter 18 Pages: 4819-4826
• [Journal Article] Dynamics of Photoexcited States in One-Dimensionl Dimerized Mott Insulators (2006)
  • Author(s): N.Maeshima, K.Yonemitsu
  • Journal Title: Physical Review B 74
• [Journal Article] Phase Diagram of the Excitonic Insulator (2006)
  • Author(s): B.Hulsen, F.X.Bronold, H.Fehske, K.Yonemitsu
  • Journal Title: Physica B 378-380 Pages: 267-268
• [Journal Article] Interchain-Coupling Effects on Photoinduced Neutral -Ionic Transition Dynamics in Mixed-Stack Charge-Transfer Complexes (2006)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of Low Temperature Physics 142 Pages: 499-502
• [Journal Article] Mechanism of Ambipolar Field-Effect Carrier Injections in One-Dimensional Mott Insulators (2005)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 74 Pages: 2544-2553
  • NAID: 110002245742
  • Peer Reviewed
• [Journal Article] Photoinduced Metallic Properties of One-Dimensional Strongly Correlated Electron Systems (2005)
  • Author(s): N. Maeshima, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 74 Pages: 2671-2674
  • NAID: 110002250631
  • Peer Reviewed
• [Journal Article] Theory of Photoinduced Phase Dynamics in Organic Charge-Transfer Complexes (2005)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of Luminescence 112 Pages: 279-282
  • Peer Reviewed
• [Journal Article] Photoinduced Dynamics and Nonequilibrium Characteristics in Quasi-One-Dimensional Electron Systems : Mott Insulators vs. Band Insulators (2005)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 21 Pages: 30-37
  • Peer Reviewed
• [Journal Article] Optical Responses of Photoexcited States in the One-Dimensional Ionic Hubbard Model (2005)
  • Author(s): N. Maeshima, K. Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 21 Pages: 183-188
  • Peer Reviewed
• [Journal Article] Quantum Ising Model Coupled with Conducting Electrons (2005)
  • Author(s): Y. Yamashita, K. Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 21 Pages: 232-236
  • Peer Reviewed
• [Journal Article] Mechanism of Ambipolar Field-Effect Carrier Injections in One-Dimensional Mott Insulators (2005)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 74 Pages: 2544-2553
  • NAID: 110002245742
• [Journal Article] Photoinduced Metallic Properties of One-Dimensional Strongly Correlated Electron Systems (2005)
  • Author(s): N.Maeshima, K.Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 74 Pages: 2671-2674
  • NAID: 110002250631
• [Journal Article] Theory of Photoinduced Phase Dynamics in Organic Charge-Transfer Complexes (2005)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of Luminescence 112 Pages: 279-282
• [Journal Article] Photoinduced Dynamics and Nonequilibrium Characteristics in Quasi-One-Dimensional Electron Systems : Mott Insulators vs. Band Insulators (2005)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 21 Pages: 30-37
• [Journal Article] Optical Responses of Photoexcited States in the One-Dimensional Ionic Hubbard Model (2005)
  • Author(s): N.Maeshima, K.Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 21 Pages: 183-188
• [Journal Article] Quantum Ising Model Coupled with Conducting Electrons (2005)
  • Author(s): Y.Yamashita, K.Yonemitsu
  • Journal Title: Journal of Physics : Conference Series 21 Pages: 232-236
• [Journal Article] Ferroelectric Phase Transition, Ionicity Condensation, and Multicriticality in Charge-Transfer Organic Complexes (2004)
  • Author(s): J. Kishine, T. Luty, K. Yonemitsu
  • Journal Title: Physical Review B 69 Pages: 75115-75115
  • NAID: 120002440841
  • Peer Reviewed
• [Journal Article] On Thermo- and Photo-Induced Symmetry-Broken Transformation in Spin-Crossover Complex ; Cooperative Activation (2004)
  • Author(s): T. Luty, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 1237-1243
  • NAID: 110001954839
  • Peer Reviewed
• [Journal Article] Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : I. Threshold Behavior in Ionic-to-Neutral Transition (2004)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 2868-2878
  • NAID: 110001979219
  • Peer Reviewed
• [Journal Article] Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : II. Linear Behavior in Neutral-to-Ionic Transition (2004)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 2879-2886
  • NAID: 110001979220
  • Peer Reviewed
• [Journal Article] Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : III. Interference Caused by a Double Pulse (2004)
  • Author(s): K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 2887-2893
  • NAID: 110001979221
  • Peer Reviewed
• [Journal Article] Two-Step Photo-Induced Phase Transitions in a Two-Sublattice Model (2004)
  • Author(s): Y. Otsuka, K. Yonemitsu
  • Journal Title: Journal de Physique IV (France) 114 Pages: 637-639
  • NAID: 110002220975
  • Peer Reviewed
• [Journal Article] Ferroelectric Phase Transition, Ionicity Condensation, an Multicriticality in Charge-Transfer Organic Complexes (2004)
  • Author(s): J.Kishine, T.Luty, K.Yonemitsu
  • Journal Title: Physical Review B 69 Pages: 75115-75115
  • NAID: 120002440841
• [Journal Article] On Thermo- and Photo-Induced Symmetry-Broken Transformation in Spin-Crossover Complex ; Cooperative Activation (2004)
  • Author(s): T.Luty, K.Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 1237-1243
  • NAID: 110001954839
• [Journal Article] Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : I.Threshold Behavior in Ionic-to-Neutral (2004)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 2868-2878
• [Journal Article] Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : II.Linear Behavior in Neutral-to-Ionic (2004)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 2879-2886
• [Journal Article] Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : III.Interference Caused by a Double Pulse (2004)
  • Author(s): K.Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 73 Pages: 2887-2893
• [Journal Article] Two-Step Photo-Induced Phase Transitions in a Two-Sublattice Model (2004)
  • Author(s): Y.Otsuka, K.Yonemitsu
  • Journal Title: Journal de Physique IV (France) 114 Pages: 637-639
  • NAID: 110002220975
• [Journal Article] Coherence Recovery and Photoinduced Phase Transitions in One-Dimensional Halogen-Bridged Binuclear Platinum Complexes (2003)
  • Author(s): K. Yonemitsu, N. Miyashita
  • Journal Title: Physical Review B 68 Pages: 75113-75113
  • Peer Reviewed
• [Journal Article] Electronic and Lattice Dynamics in the Photoinduced Ionic-to-Neutral Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model (2003)
  • Author(s): N. Miyashita, M. Kuwabara, K. Yonemitsu
  • Journal Title: Journal of the Physical Society of Japan 72 Pages: 2282-2290
  • NAID: 110001974322
  • Peer Reviewed
• [Journal Article] Self-Doping Effect on the Mott Transition Accompanied with Three-Fold Charge Ordering in (DCNQI)2Cu (2003)
  • Author(s): M. Kuwabara, K. Yonemitsu, H. Ohta
  • Journal Title: Synthetic Metals 133-134 Pages: 195-191
  • Peer Reviewed
• [Journal Article] Dynamic Spin Correlations near Neutral-Ionic Phase Transitions (2003)
  • Author(s): K. Yonemitsu
  • Journal Title: Physica B 329-333 Pages: 1219-1220
  • Peer Reviewed
• [Journal Article] Photoexcited States and Photoinduced Dynamics in Electronic Phases of MMX-chain Systems (2003)
  • Author(s): K. Yonemitsu, N. Miyashita, M. Kuwabara
  • Journal Title: Synthetic Metals 135-136 Pages: 521-522
  • Peer Reviewed
• [Journal Article] Photoinduced Dynamics of Ionicity near the Neutral-Ionic Phase Boundary in a One-Dimensional Extended Peierls-Hubbard Model (2003)
  • Author(s): N. Miyashita, M. Kuwabara, K. Yonemitsu
  • Journal Title: Synthetic Metals 135-136 Pages: 645-646
  • Peer Reviewed
• [Presentation] 金属絶縁体界面を通した輸送の特性 : 電子相関と界面障壁 (2008)
  • Author(s): 米満賢治
  • Organizer: 第2回研究会「金属錯体の固体物性科学最前線一錯体化学と固体物性物理の新奇融合領域創成をめざして-」
  • Place of Presentation: 仙台
  • Year and Date: 2008-12-21
• [Presentation] Photogenerated polaronic state in a one-dimensional dimerized Mott insulator K-TCNQ (2008)
  • Author(s): N. Maeshima, K. Yonemitsu, K. Hino
  • Organizer: Yamada Conference LXIll, 3rd International Conference on “Photoinduced Phase Transitions and Cooperative Phenomena"
  • Place of Presentation: Osaka (Japan)
  • Year and Date: 2008-11-13
• [Presentation] Effects of spin fluctuations, charge fluctuations and lattice distortions on charge orders in 6- and α-type BEDT-TTF salts (2008)
  • Author(s): S. Miyashita, K. Yonemitsu
  • Organizer: Yamada Conference LXIll, 3rd International Conference on “Photoinduced Phase Transitions and Cooperative Phenomena"
  • Place of Presentation: Osaka (Japan)
  • Year and Date: 2008-11-13
• [Presentation] Photoinduced melting of charge order in quasi-two-dimensional organic conductors (2008)
  • Author(s): Y. Tanaka, K. Yonemitsu
  • Organizer: Yamada Conference LXIll, 3rd International Conference on “Photoinduced Phase Transitions and Cooperative Phenomena"
  • Place of Presentation: Osaka (Japan)
  • Year and Date: 2008-11-13
• [Presentation] Photoinduced Melting and Charge Order in Quarter-Filled Organic Conductors : Itinerant Electron Systems with Competing Interactions (2008)
  • Author(s): K. Yonemitsu, N. Maeshima, Y. Tanaka, s. Miyashita
  • Organizer: Yamada Conference LXIll, 3rd International Conference on “Photoinduced Phase Transitions and Cooperative Phenomena"
  • Place of Presentation: Osaka (Japan)
  • Year and Date: 2008-11-11
• [Presentation] Photoinduced phase transitions and dynamics in organic conductors (2008)
  • Author(s): K. Yonemitsu
  • Organizer: SOKENDAI Asian Winter School "Molecular Sciences on Different Space-Time Scales"
  • Place of Presentation: Okazaki (Japan)
  • Year and Date: 2008-11-10
• [Presentation] Wave-particle dual nature and phase diagram of organic conductors (2008)
  • Author(s): K. Yonemitsu
  • Organizer: SOKENDAI Asian Winter School/Molecular Sciences on Different Space-Time Scales"
  • Place of Presentation: Okazaki (Japan)
  • Year and Date: 2008-11-10
• [Presentation] 軌道縮退ハバード模型における光誘起ダイナミクス (2008)
  • Author(s): 前島展也, 米満賢治, 日野健一
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手
  • Year and Date: 2008-09-22
• [Presentation] 擬二次元有機導体における電荷秩序の光誘起融解 (2008)
  • Author(s): 田中康寛, 米満賢治
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手
  • Year and Date: 2008-09-21
• [Presentation] Photoinduced Charge Dynamics in Organic Conductors and Coherent Neutral-Ionic/Polarization Dynamics in Quantum Paraelectrics (2008)
  • Author(s): K. Yonemitsu, N. Maeshima, Y. Yamashita
  • Organizer: International Symposium on Molecular Conductors 2008 “Novel Functions of Molecular Conductors under Extreme Conditions"
  • Place of Presentation: Okazaki (Japan)
  • Year and Date: 2008-07-25
• [Presentation] Suppression of Rectification at Interfaces between Metals and Organic Mott Insulators (2008)
  • Author(s): K. Yonemitsu, N. Maeshima, T. Hasegawa
  • Organizer: International Symposium on Molecular Materials Chemistry, Solid State Physics, Theory, Nanotechnology From Molecule to Molecular Device(MOLMAT2008)
  • Place of Presentation: Toulouse (France)
  • Year and Date: 2008-07-08
• [Presentation] Energy transfer to phonons after photoexcitation in one-dimensional correlated electron-phonon systems (2008)
  • Author(s): K. Yonemitsu, N. Maeshima
  • Organizer: 2008 International Conference on Excitonic Processes in Condensed Matter (EXCON'08)
  • Place of Presentation: Kyoto (Japan)
  • Year and Date: 2008-06-26
• [Presentation] Photoinduced Charge Order with Delocalized Electrons in Quarter-Filled Organic Conductors (2008)
  • Author(s): K. Yonemitsu, N. Maeshima
  • Organizer: 1st International Conference of The Grand Challenge to Next-Generation Integrated Nanoscience
  • Place of Presentation: Tokyo (Japan)
  • Year and Date: 2008-06-04
• [Presentation] Charge Order and Lattice Distortion in Quasi-Two-Dimensional Organic Conductors (2008)
  • Author(s): Y. Tanaka, K. Yonemitsu
  • Organizer: 1st International Conference of The Grand Challenge to Next-Generation Integrated Nanoscience
  • Place of Presentation: Tokyo (Japan)
  • Year and Date: 2008-06-04
• [Presentation] Strong-Coupling Analysis of Effects of Electron-Phonon Couplings on Charge Orders in θ-and a-Type BEDT-TTF Salts (2008)
  • Author(s): S. Miyashita, K. Yonemitsu
  • Organizer: 1st International Conference of The Grand Challenge to Next-Generation Integrated Nanoscience
  • Place of Presentation: Tokyo (Japan)
  • Year and Date: 2008-06-04
• [Presentation] θ型およびα型ET塩の電荷秩序化に対する電子格子相関効果 : 強相関極限からのアプローチ (2008)
  • Author(s): 宮下哲, 米満賢治
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 東大阪
  • Year and Date: 2008-03-24
• [Presentation] θ型およびα型ET塩の電荷秩序化に対する電子格子相関効果:強相関極限からのアプローチ (2008)
  • Author(s): 宮下 哲、米満賢治
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 東大阪
  • Year and Date: 2008-03-24
• [Presentation] 1次元強相関電子格子系における光励起後のフォノンヘのエネルギー移動 (2008)
  • Author(s): 米満賢治, 前島展也
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 東大阪
  • Year and Date: 2008-03-23
• [Presentation] 二次元有機導体における格子歪みを伴う電荷秩序と光誘起融解 (2008)
  • Author(s): 田中康寛, 米満賢治
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 東大阪
  • Year and Date: 2008-03-23
• [Presentation] 1次元強相関電子格子系における光励起後のフォノンへのエネルギー移動 (2008)
  • Author(s): 米満賢治、前島展也
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 東大阪
  • Year and Date: 2008-03-23
• [Presentation] Photoinduced Charge Order and Melting Dynamics in 1/4-Filled Organic Conductors (2007)
  • Author(s): K. Yonemitsu
  • Organizer: International Meeting of Japan-France Core-to-Core Project
  • Place of Presentation: Rennes (France)
  • Year and Date: 2007-12-11
• [Presentation] Photoinduced Charge Order and Melting Dynamics in 1/4-Filled Organic Conductors (2007)
  • Author(s): K. Yonemitsu
  • Organizer: International Meeting of Japan-France Core-to-Core Project
  • Place of Presentation: Rennes(France)
  • Year and Date: 2007-12-11
• [Presentation] Photoinduced Charge Order and Melting Dynamics in Quarter-Filled Organic Conductors (2007)
  • Author(s): K. Yonemitsu
  • Organizer: 9th China-Japan Joint Symposium on Conduction andPhotoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Beijing (China)
  • Year and Date: 2007-10-29
• [Presentation] Photoinduced Charge Order and Melting Dynamics in Quarter-Filled Organic Conductors (2007)
  • Author(s): K. Yonemitsu
  • Organizer: 9th China-Japan Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Beijing(China),
  • Year and Date: 2007-10-29
• [Presentation] 2量化した1次元モット絶縁体におけるポーラロン状態の解析 (2007)
  • Author(s): 前島展也, 米満賢治
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-23
• [Presentation] α-(ET)_2I_3の電荷秩序に対する光照射の効果 (2007)
  • Author(s): 田中康寛, 米満賢治
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-22
• [Presentation] 1次元電子格子系の電荷秩序の光誘起融解における過渡スペクトル (2007)
  • Author(s): 米満賢治, 前島展也
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-22
• [Presentation] α-(ET)_2 I_3の電荷秩序に対する光照射の効果 (2007)
  • Author(s): 田中康寛、米満賢治
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-22
• [Presentation] 擬2次元有機導体の格子効果による電荷フラストレーションの解消 (2007)
  • Author(s): 宮下哲, 米満賢治
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-21
• [Presentation] 擬2次元有機導体の格子効果による電荷フラストレーションンの解消 (2007)
  • Author(s): 宮下 哲、米満賢治
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-21
• [Presentation] Photoinduced Melting of Charge and Lattice Orders Viewed from Theoretical TransientSpectra (2007)
  • Author(s): K. Yonemitsu
  • Organizer: Pre-conference “Photoinduced Phase Transition"Seminar
  • Place of Presentation: Wroclaw (Poland)
  • Year and Date: 2007-06-23
• [Presentation] Photoinduced Melting of Charge and Lattice Orders Viewed from Theoretical transient Spectra (2007)
  • Author(s): K. Yonemitsu
  • Organizer: Pre-conference "Photoinduced Phase Transition" Seminar
  • Place of Presentation: Wroclaw(Poland)
  • Year and Date: 2007-06-23
• [Presentation] 光誘起相転移ダイナミクスの理論 : 秩序の融解と過渡スペクトル (2007)
  • Author(s): 米満賢治
  • Organizer: 「分子性導体の機能・構造相関の研究と放射光利用」研究会
  • Place of Presentation: SPring-8
  • Year and Date: 2007-06-04
• [Presentation] 光誘起相転移ダイナミクスの理論:秩序の融解と過渡スペクトル (2007)
  • Author(s): 米満賢治
  • Organizer: 「分子性導体の機能・構造相関の研究と放射光利用」研究会
  • Place of Presentation: SPring-8
  • Year and Date: 2007-06-04
• [Presentation] Theoretical Approaches to Photoinduced Phase Transition Dynamics (2007)
  • Author(s): K. Yonemitsu
  • Organizer: 2nd France-Japan Advanced School on Chemistry and Physics of Molecular Materials
  • Place of Presentation: Tokyo (Japan)
• [Presentation] Photoinduced Melting Dynamics in Spin-Peierls and Charge-Ordered Systems (2007)
  • Author(s): K. Yonemitsu, N. Maeshima
  • Organizer: 4th Japan-France Symposium on Molecular Materials : Electronics, Photonics and Spintronics
  • Place of Presentation: Tokyo (Japan)
• [Presentation] 中性-イオン性転移近傍の量子常誘電性と量子フォノン (2007)
  • Author(s): 山下靖文, 米満賢治
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島
• [Presentation] □-RbZn塩と□-I_3塩における電荷秩序化に対する格子効果の違い (2007)
  • Author(s): 宮下哲, 米満賢治
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島
• [Presentation] 電荷秩序の光誘起融解における電荷移動過程、フォノンモードと効率 (2007)
  • Author(s): 米満賢治, 前島展也
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島
• [Presentation] 二量化した一次元モット絶縁体の最低光学励起状態 (2007)
  • Author(s): 前島展也, 米満賢治
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島
• [Presentation] 擬二次元有機導体の電荷秩序に対する電子格子相互作用の効果 (2007)
  • Author(s): 田中康寛, 米満賢治
  • Organizer: 日本物理学会2007年春季大会
  • Place of Presentation: 鹿児島
• [Presentation] 分子性半導体/金属界面のキャリア輸送(理論) (2006)
  • Author(s): 米満賢治
  • Organizer: 日本物理学会第61回年次大会領域7シンポジウム「分子性半導体素子の新展開」
  • Place of Presentation: 松山
• [Presentation] θ型ET塩の電荷秩序化に対する電子格子相互作用の効果 (2006)
  • Author(s): 宮下哲, 米満賢治
  • Organizer: 日本物理学会第61回年次大会
  • Place of Presentation: 松山
• [Presentation] 中性イオン性量子相転移近傍の量子常誘電性と電荷移動揺らぎ (2006)
  • Author(s): 山下靖文, 米満賢治
  • Organizer: 日本物理学会第61回年次大会
  • Place of Presentation: 松山
• [Presentation] 二量化した一次元モット絶縁体における光誘起ダイナミクス (2006)
  • Author(s): 前島展也, 米満賢治
  • Organizer: 日本物理学会第61回年次大会
  • Place of Presentation: 松山
• [Presentation] Correlated Charge Transport through Mott-Insulator-Metal Interfaces (2006)
  • Author(s): K. Yonemitsu, N. Maeshima
  • Organizer: International Conference on Science and Technology ofSynthetic Metals (ICSM2006)
  • Place of Presentation: Dublin (Ireland)
• [Presentation] 有機半導体における電子相関に依存した光誘起相転移ダイナミクス (2006)
  • Author(s): 米満賢治
  • Organizer: 日本物理学会2006年秋季大会領域5-7合同シンポ「強相関電子系における光誘起相転移の超高速ダイナミクス」
  • Place of Presentation: 千葉
• [Presentation] θ-(ET)_2Xの電荷秩序に対する電子格子相互作用の効果 : 平均場近似による解析 (2006)
  • Author(s): 田中康寛, 米満賢治
  • Organizer: 日本物理学会2006年秋季大会
  • Place of Presentation: 千葉
• [Presentation] 1/4フィリングET塩の電荷秩序化と光学伝導度に対する格子効果 (2006)
  • Author(s): 宮下哲, 米満賢治
  • Organizer: 日本物理学会2006年秋季大会
  • Place of Presentation: 千葉
• [Presentation] 1次元モット絶縁体の電界効果:両極性の起源 (2005)
  • Author(s): 米満賢治
  • Organizer: 日本物理学会第60回年次大会
  • Place of Presentation: 野田
• [Presentation] 1次元ionic-Hubbard模型の光励起状態における光学応答 (2005)
  • Author(s): 前島展也, 米満賢治
  • Organizer: 日本物理学会第60回年次大会
  • Place of Presentation: 野田
• [Presentation] フォトドープされたSrTiO_3の誘電率とキャリア易動度に関する理論 (2005)
  • Author(s): 山下靖文, 米満賢治
  • Organizer: 日本物理学会第60回年次大会
  • Place of Presentation: 野田
• [Presentation] Photoinduced Dynamics and Nonequilibrium Characteristics in Quasi-One-Dimensional Electron Systems : Mott Insulators vs. Band Insulators (2005)
  • Author(s): K. Yonemitsu
  • Organizer: Second International Conference on Photo-induced Phase Transitions ; Cooperative, Nonlinear and Functional Properties
  • Place of Presentation: Rennes (France)
• [Presentation] Photoinduced Neutral-Ionic Transition Dynamics in Quasi-One-Dimensional Electron-Lattice Systems : Effects of Inter chain Interactions (2005)
  • Author(s): K. Yonemitsu
  • Organizer: International Symposium on Molecular Conductors ? Novel Functions of Molecular Conductors under Extreme Conditions
  • Place of Presentation: Hayama (Japan)
• [Presentation] 光誘起イオン性中性相転移における鎖間相互作用の効果 (2005)
  • Author(s): 米満賢治
  • Organizer: 日本物理学会2005年秋季大会
  • Place of Presentation: 京田辺
• [Presentation] 1次元モット、バンド絶縁体における光誘起ダイナミクス (2005)
  • Author(s): 前島展也, 米満賢治
  • Organizer: 日本物理学会2005年秋季大会
  • Place of Presentation: 京田辺
• [Presentation] Mechanism of Ambipolar Field-Effect Transistors on One-Dimensional Organic Mott Insulators (2005)
  • Author(s): K. Yonemitsu
  • Organizer: The 2005 International Chemical Congress of Pacific Basin Societies
  • Place of Presentation: Honolulu (U. S. A. )
• [Presentation] 光誘起イオン性中性相転移におけるダブルパルスと干渉効果 (2004)
  • Author(s): 米満賢治
  • Organizer: 日本物理学会第59回年次大会
  • Place of Presentation: 福岡
• [Presentation] Theory of Photoinduced Phase Dynamics in Organic Charge-Transfer Complexes (2004)
  • Author(s): K. Yonemitsu
  • Organizer: 6th International Conference on Excitonic Processes in Condensed Matter (EXCON'04)
  • Place of Presentation: Krakow (Poland)
• [Presentation] TTF-CAの中性イオン性および常誘電強誘電転移と光誘起緩和過程 (2004)
  • Author(s): 井上仁, 米満賢治
  • Organizer: 日本物理学会2004年秋季大会
  • Place of Presentation: 青森
• [Presentation] 2段転移スピンクロスオーバー錯体の熱誘起および光誘起の中間状態の違いについて (2004)
  • Author(s): 大塚雄一, 米満賢治
  • Organizer: 日本物理学会2004年秋季大会
  • Place of Presentation: 青森
• [Presentation] Theory of Field Effects on One-Dimensional Organic Mott Insulators (2004)
  • Author(s): K. Yonemitsu
  • Organizer: 8th Japan-China Joint Symposium on Conduction and Photoconduction in Organic Solids and Related Phenomena
  • Place of Presentation: Okazaki (Japan)
• [Presentation] 電荷移動錯体TTF-CAにおける鎖間方向の電歪とイオン性常誘電相 (2003)
  • Author(s): 岸根順一郎, 米満賢治
  • Organizer: 日本物理学会2003年秋季大会
  • Place of Presentation: 岡山
• [Presentation] 光誘起イオン性中性相転移のパルス電場依存性 (2003)
  • Author(s): 米満賢治
  • Organizer: 日本物理学会2003年秋季大会
  • Place of Presentation: 岡山
• [Book] 光誘起相転移の理論-コヒーレント振動と過渡状態-レーザー研究(The Review of Laser Engineering) 36, No. 6, 343-348 (2008)
  • Author(s): 米満賢治
  • Total Pages: 6
  • Publisher: レーザー学会
• [Book] Theory of Optical Responses of Photoexcited Halogen-Bridged Metal Complexes in Different Insulating Phases, in Multifunctional Conducting Molecular Materials (2007)
  • Author(s): N. Maeshima, K. Yonemitsu
  • Publisher: RSC ; Cambridge
• [Book] Mechanism of Ambipolar Field-Effect Transistors on One-Dimensional Organic Mott Insulators, in Multifunctional Conducting Molecular Materials (2007)
  • Author(s): K. Yonemitsu
  • Publisher: RSC ; Cambridge
• [Book] 光で電子を一斉に動かし物性を変えるしくみの理論光アライアンス 18, No. 7, 29-33 (2007)
  • Author(s): 米満賢治
  • Total Pages: 5
  • Publisher: 日本工業出版
• [Remarks]
  • URL: http://www.ims.ac.ip/topics/2005/050613.html
• [Publications] K.Yonemitsu, N.Miyashita: "Coherence Recovery and Photoinduced Phase Transitions in One-Dimensional Halogen-Bridged Binuclear Platinum Complexes"Physical Review B. 68. 075113 (2003)
• [Publications] N.Miyashita, M.Kuwabara, K.Yonemitsu: "Electronic and Lattice Dynamics in the Photoinduced Ionic-to Neutral Phase Transition in a One-Dimensional Extended Peierls-Hubbard Model"Journal of the Physical Society of Japan. 72. 2282-2290 (2003)
• [Publications] M.Kuwabara, K.Yonemitsu, H.Ohta: "Self-Doping Effect on the Mott Transition Accompanied with Three-Fold Charge Ordering in (DCNQI)2Cu"Synthetic Metals. 133-134. 295-297 (2003)
• [Publications] K.Yonemitsu: "Dynamic Spin Correlations near Neutral-Ionic Phase Transitions"Physica B. 329-333. 1219-1220 (2003)
• [Publications] K.Yonemitsu, N.Miyashita, M.Kuwabara: "Photoexcited States and Photoindeced Dynamics in Electronic Phases of MMX-chain Systems"Synthetic Metals. 135-136. 521-522 (2003)
• [Publications] N.Miyashita, M.Kuwabara, K.Yonemitsu: "Photoinduced Dynamics of Ionicity near the Neutral-Ionic Phase Boundary in a One-Dimensional Extended Peierls-Hubbard Model"Synthetic Metals. 135-136. 645-646 (2003)
• [Publications] 米満賢治: "低次元金属錯体の多様な電子物性の起源(大川尚士,伊藤翼編)「集積型金属錯体の科学」,II部12章"化学同人. 9 (2003)