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Clarification of the initial dynamics of photoinduced phase transition in strongly correlated electron systems

Research Project

Project/Area Number 19740176
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics I
Research InstitutionThe University of Tokyo

Principal Investigator

MATSUZAKI Hiroyuki  The University of Tokyo, 大学院・新領域創成科学研究科, 助教 (80422400)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,870,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywords光物性 / 光誘起相転移 / 強相関電子系 / 時間分解ポンプ・プローブ分光法 / 時間分解ポンプープローブ分光 / 遷移金属酸化物 / 有機半導体 / 時間分解フェムト秒ポンプープローブ分光
Research Abstract

光照射によって、物質の電子構造や巨視的物性が変化する現象は、光誘起相転移と呼ばれ、強相関電子系を中心に活発な研究が行われている。本研究では、強相関電子系における光誘起相転移の本質を理解するために、30フェムト秒クラスの高い時間分解能を有するポンプ-プローブ分光測定系を構築し、光誘起相転移の初期ダイナミクスを明らかにすることに目的とする。上記の測定システムを、典型的な強相関電子系物質であるペロフスカイト型マンガン酸化物に適用し、光誘起電荷・軌道秩序相融解の初期過程を詳細に調べた。その結果、電子相関の効果によって、時間分解能(30 fs)以内に、瞬時に秩序相が融解し、これに引き続いて、複数の酸素原子由来のコヒーレント振動が発生することを見出した。特に、軌道秩序の安定化に重要なヤーンテラーモードに由来するコヒーレント振動が、相融解の初期過程で顕著に観測されることを明らかにした。これらは、秩序相の安定化に、隣接サイト間のクーロン反発と軌道秩序が重要な役割を演じていることを示す重要な結果である。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (43 results)

All 2009 2008 2007

All Journal Article (21 results) (of which Peer Reviewed: 21 results) Presentation (20 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Ultrafast photoinduced transitions in charge density wave, Mott insulator, and metallic phases of an iodine-bridged platinumcompound2009

    • Author(s)
      K. Kimura, H. Matsuzaki, S. Takaishi, M. Yamashita, H. Okamoto
    • Journal Title

      Physical Review B 79

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detecting charge and latice dynamics in photoinduced charge-order melting in perovskite-type manganites using a 30-femtosecond time resolution2009

    • Author(s)
      H. Matsuzaki, H. Uemura, M. Matsubara, T. Kimura, Y. Tokura, H. Okamoto
    • Journal Title

      Physical Review B (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast photoinduced transitions in charge density wave, Mott in sulator,and metallic phases of an iodine-bridged platinum compound2009

    • Author(s)
      K. Kimura
    • Journal Title

      Physical Review B 79

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast optical responses in one-dimensional Mott insulators of halogen-bridged Ni compounds2009

    • Author(s)
      S. Tao
    • Journal Title

      Journal of Physics : Conference Series 148

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast photoinduced melting of spin-peierls phase in pota ssium tetracyanonuinodimethane2009

    • Author(s)
      H. Uemura
    • Journal Title

      Journal of Physics Conference Series 148

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Optical Responses in a One-Dimensional Mott Insulator of a Br-Bridged Ni Compound2008

    • Author(s)
      T. Miyagoe, S. Tao, A. Maeda, H. Matsuzaki, H. Ohtsu, M. Hasegawa, S. Takaishi, M. Yamashita, H. Okamoto
    • Journal Title

      Journal of the Physical Society of Japan 77

    • NAID

      110006613879

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Charge Dynamics in One-Dimensional Organic Mott Insulators2008

    • Author(s)
      H. Uemura, H. Matsuzaki, Y. Takahashi, T. Hasegawa, H. Okamoto
    • Journal Title

      Journal of the Physical Society of Japan 77

    • NAID

      110006983736

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Charge-Density-Wave to Mott-Hubbard Phase Transition in Quas i-One-Dimensional Bromo-Bridged Pd Compounds2008

    • Author(s)
      S. Takaishi
    • Journal Title

      Journal of the Amerian Chemical Society 130

      Pages: 12080-12084

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Charge Dynamics in One-Dimensional Organic Mott Insulators2008

    • Author(s)
      H. Uemura
    • Journal Title

      Journal of the Physical Society of Japan 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mixed Charge-Ordering State of MMX-Type Quasi-One-Dimensionl Iodide-B ridged Platinum Complexes with Binary Countercations2008

    • Author(s)
      H. Iguchi
    • Journal Title

      Journal of the American Chemical Society 130

      Pages: 17668-17669

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Optical Responses in a One-Dimensional Mott Insulator of a Br-Bridged Ni Compound2008

    • Author(s)
      T.Miyagoe
    • Journal Title

      Journal of the Physical Society of Japan 77

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] One-Dimensional Bromo-Bridged Ni^<III> Complexes [Ni(S,S-bn)_2Br]Br_2(S,S-bn=2S,3S-diaminobutane): Synthesis, Physical Properties, and Electrostatic Carrier Doping2008

    • Author(s)
      S.Takaishi
    • Journal Title

      Chemistry-A European Joumal 14

      Pages: 472-477

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Photoinduced Formation of Metallic State in a Perovskite-type Manganite with Short Range Charge and Orbital Order2007

    • Author(s)
      Y. Okimoto, H. Matsuzaki, Y. Tomioka, I. Kezsmarki, T. Ogasawara, M. Matsubara, H. Okamoto, Y. Tokura
    • Journal Title

      Journal of the Physical Society of Japan 76

    • NAID

      110006278027

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast photoinduced melting of spin-Peierls phase in the organic chargetransfer compounds alkalitetracyanoquinodimethane2007

    • Author(s)
      K. Ikegami, K. Ono, J. Togo, T. Wakabayashi, Y. Ishige, H. Matsuzaki, H. Kishida, H. Okamoto
    • Journal Title

      Physical Review B 76

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Optical Switching by Using Nanocrystals of a Halogen-Bridged Nickel-Chain Compound Dispersed in an Optical Polymer2007

    • Author(s)
      S. Tao, T. Miyagoe, A. Maeda, H. Matsuzaki, H. Ohtsu, M. Hasegawa, S. Takaishi, M. Yamashita, H. Okamoto
    • Journal Title

      Advanced Materials 19

      Pages: 2707-2710

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Photoinduced Metallic State Mediated by Spin-Charge Separation in a One-Dimensional Organic Mott Insulator2007

    • Author(s)
      H. Okamoto, H. Matsuzaki, T. Wakabayashi, Y. Takahashi, T. Hasegawa
    • Journal Title

      Physical Review Letters 98

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Tuning of electronic structures of quasi-one-dimensional bromo-bridged Pd^<II>-Pd^<IV> mixed-valence complexes by substituting counter anions2007

    • Author(s)
      H.Arakawa
    • Journal Title

      Bulletin of the Chemical Society of Japan 80

      Pages: 189-191

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoinduced Metallic State Mediated by Spin-Charge Separation in a One-Dimensional Organic Mott Insulator2007

    • Author(s)
      H.Okamoto
    • Journal Title

      Physical Review Letters 98

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast Photoinduced Formation of Metallic State in a Perovskite-type Manganite with Short Range Charge and Orbital Order2007

    • Author(s)
      Y.Okimoto
    • Journal Title

      Journal of the Physical Society of Japan 76

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast photoinduced melting of spin-Peierls phase in the organic charge-transfer compounds alkali-tetracyanoquinodimethane2007

    • Author(s)
      K.Ikegami
    • Journal Title

      Physical Review B 76

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ultrafast optical switching by using nanocrystals of a halogen-bridged nickel-chain compound dispersion in an optical polymer2007

    • Author(s)
      S.Tao
    • Journal Title

      Advanced Materials 19

      Pages: 2707-2710

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] TiO_2-二次元銅酸化物ヘテロ接合における光キャリア注入2009

    • Author(s)
      松崎弘幸, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-28
    • Related Report
      2008 Final Research Report
  • [Presentation] TiO_2-二次元銅酸化物ヘテロ接合における光キャリア注入2009

    • Author(s)
      松崎弘幸
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学池袋キャンパス
    • Year and Date
      2009-03-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] Ultrafast dynamics of photoinduced neutraltionic phase transitionsin charge transfer compoundswith Quantum paraelectricity2008

    • Author(s)
      松崎弘幸
    • Organizer
      3rd International Conference on Photoinduced Phase Transitions and Cooperative Phenomena (PIPT2008)
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2008-11-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Ultrafast dynamics of photoinduced melting of charge and orbital order in perovskite-type manganite2008

    • Author(s)
      松崎弘幸
    • Organizer
      International Symposium on Anomalous Quantum Mat erials (ISAQM2008)
    • Place of Presentation
      東京大学本郷キャンパス
    • Year and Date
      2008-11-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] 臭素架橋Pd錯体における光誘起モットハバードー電荷密度波相転移とモットハバードー金属相転移2008

    • Author(s)
      松崎弘幸, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学上田キャンパス
    • Year and Date
      2008-09-21
    • Related Report
      2008 Final Research Report
  • [Presentation] 臭素架橋Pd錯体における光誘起モットババード-電荷密度波相転移とモットババード-金属相転移2008

    • Author(s)
      松崎弘幸
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学上田キャンパス
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] Ultrafast Dynamics of Photoinduced Melting of Charge and Orbital Order in Perovskite Manganite Nd_<0.5>Ca_<0.5>MnO_32008

    • Author(s)
      松崎弘幸, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      秋葉原コンペンションホール
    • Year and Date
      2008-05-23
    • Related Report
      2008 Final Research Report
  • [Presentation] Ultrafast dynamics of photoinduced melting of charge and orbital order in perovskite-type manganite2008

    • Author(s)
      松崎弘幸, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      秋葉原コンペンションホール
    • Year and Date
      2008-05-23
    • Related Report
      2008 Final Research Report
  • [Presentation] 温度誘起電荷密度波-モットハバード相転移を示す臭素架橋Pd錯体の光誘起相転移2008

    • Author(s)
      松崎弘幸, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学東大阪キャンパス
    • Year and Date
      2008-03-24
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] K-TCNQにおける光誘起スピンパイエルス相融解ダイナミクスの温度依存性2008

    • Author(s)
      上村 紘崇
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学東大阪キャンパス
    • Year and Date
      2008-03-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] DMTTF-QBr_nCl_<4-n> (n=0-2)における光誘起中性-イオン性転移の超高速ダイナミクス2008

    • Author(s)
      岡本 博
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学東大阪キャンパス
    • Year and Date
      2008-03-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] 一次元銅酸化物薄膜におけるフェムト秒過渡吸収分光2008

    • Author(s)
      西岡 大毅
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学東大阪キャンパス
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] 二次元銅酸化物における光誘起絶縁体金属転移I2007

    • Author(s)
      小林 賢太郎
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] 二次元銅酸化物における光誘起絶縁体金属転移II2007

    • Author(s)
      宮越 達三
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] アルカリーTCNQにおける光誘起スピンパイエルス相融解の温度依存性2007

    • Author(s)
      上村 紘崇
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] ペロフスカイト型Mn酸化物における光誘起電荷・軌道秩序融解の超高速ダイナミクス2007

    • Author(s)
      松崎弘幸, 他
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-22
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 30フェムト秒ポンププローブ分光によるアルカリーTCNQの光誘起スピンパイエルス相融解の研究2007

    • Author(s)
      上村 紘崇
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] 有機電荷移動錯体DMTTF-QBr_nCl_<4-n>における光誘起中性-イオン性転移2007

    • Author(s)
      木村 和輝
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] 電荷密度波-モットハバード相転移を示す臭素架橋Pd錯体における光誘起相転移の探索2007

    • Author(s)
      岩田 宗朗
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2007-09-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ultrafast dynamics of photoinduced melting of charge and orbital order in perovskite manganite Nd_<0.5>Ca_<0.5>MnO_32007

    • Author(s)
      松崎 弘幸
    • Organizer
      2007 CERC 国際シンポジウム
    • Place of Presentation
      秋葉原コンベンションホール
    • Year and Date
      2007-05-22
    • Related Report
      2007 Annual Research Report
  • [Patent(Industrial Property Rights)] 光スイッチ用素子材料及びそれを有する光スイッチ装置並ぶに光スイッチ方法2009

    • Inventor(s)
      岡本博, 松崎弘幸, 山下正廣, 高石慎也, 太田康公
    • Industrial Property Rights Holder
      岡本博, 松崎弘幸, 山下正廣, 高石慎也, 太田康公
    • Filing Date
      2009-02-17
    • Related Report
      2008 Final Research Report
  • [Patent(Industrial Property Rights)] 光スイッチ用素子材料及びそれを有する光スイッチ装並びに光スイッチング方法2009

    • Inventor(s)
      岡本博, 松崎弘幸 山下正廣, 高石慎也, 太田康公
    • Industrial Property Rights Holder
      (独)科学技術振興機構
    • Industrial Property Number
      2009-034662
    • Filing Date
      2009-02-17
    • Related Report
      2008 Annual Research Report

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Published: 2007-04-01   Modified: 2020-05-15  

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