• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2015 Fiscal Year Annual Research Report

相関電子系の励起と緩和のダイナミクス

Research Project

Project/Area Number 24360036
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

小椎八重 航  国立研究開発法人理化学研究所, 創発物性科学研究センター, 上級研究員 (20273253)

Co-Investigator(Kenkyū-buntansha) 森 道康  国立研究開発法人日本原子力研究開発機構, 先端基礎研究センター, 研究副主幹 (30396519)
筒井 健二  国立研究開発法人放射線医学総合研究所, 関西光科学研究所放射光科学研究センター, 上席研究員 (80291011)
Project Period (FY) 2012-04-01 – 2016-03-31
Keywords光誘起絶縁体金属転移 / 実時間ダイナミクス / 磁気skyrmion
Outline of Annual Research Achievements

平成27年度は,本計画を成功裏に終了を迎えるだけでなく,新たな展開,磁気テクスチャと伝導の物理に向けての基礎を築くことに成功した.まず,本計画が提唱してきた理論研究の最終形は次のようにまとめられる.本計画が提唱してきた理論研究,光誘起絶縁体金属転移の実時間ダイナミクスの物理の核となっていたのが,強い電子間相互作用である.この相互作用はまた,磁性の起源をも与える.すなわち,強い電子層間を含む系の伝導は,自然と電荷・磁気モーメント結合系の物理をもたらすのである.磁気モーメントの長距離秩序は,しばしば非自明な幾何学構造,磁気トポロジーをともなう.本計画が成功裏に進む中で,伝導に対する磁気トポロジーの役割の重要性が浮き彫りとなり,また新たな物理繰り広げ,さらには研究成果にも結び付けてきた.とりわけ,磁気skyrmionのダイナミクスに関する研究について発展がみられた.また,さまざまのスピン系の理論やスピンホール効果の研究も行われた.相関電子系の励起と緩和の理論を展開してきた本計画は,非弾性X線散乱による強相関電子系の電子構造および磁気構造の観測に関する理論も進展させてきた.特に今年度は,電子ドープした銅酸化物を具体例に,遷移金属化合物の観測に関する理論的研究に十分な成果が得られた.
すべての成果は,原著論文,国際会議での招待講演,そして学会発表等で報告・発信された.

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

  • Research Products

    (27 results)

All 2016 2015

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 1 results,  Acknowledgement Compliant: 8 results) Presentation (19 results) (of which Int'l Joint Research: 12 results,  Invited: 6 results)

  • [Journal Article] Theory of antiskyrmions in magnets2016

    • Author(s)
      W. Koshibae and N. Nagaosa
    • Journal Title

      Nature Communications

      Volume: 7 Pages: 10542

    • DOI

      10.1038/ncomms10542

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] What determines the sign of the spin Hall effects in Cu alloys doped with 5d elements?2016

    • Author(s)
      Z. Xu, B. Gu, M. Mori, T. Ziman, and S. Maekawa
    • Journal Title

      J. Magn. Magn. Mater.

      Volume: 400 Pages: 184-187

    • DOI

      10.1016/j.jmmm.2015.08.073

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Photodrive of magnetic bubbles via magnetoelastic waves2015

    • Author(s)
      N. Ogawa, W. Koshibae, A. J. Beekman, N. Nagaosa, M. Kubota, M. Kawasaki, and Y. Tokura
    • Journal Title

      PNAS

      Volume: 112 Pages: 8977

    • DOI

      10.1073/pnas.1504064112

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Quasi-spin correlations in a frustrated quantum spin ladder2015

    • Author(s)
      T. Sugimoto, M. Mori, T. Tohyama, and S. Maekawa
    • Journal Title

      Physics Procedia

      Volume: 75 Pages: 861-867

    • DOI

      10.1016/j.phpro.2015.12.111

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Lifshitz Transition Induced by Magnetic Field for Frustrated Two-Leg Spin-Ladder System2015

    • Author(s)
      T. Sugimoto, M. Mori, T. Tohyama, and S. Maekawa
    • Journal Title

      JPS Conf. Proc.

      Volume: 8 Pages: 034005

    • DOI

      10.7566/JPSCP.8.034005

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Magnetization Plateaux by Reconstructed Quasi-spinons in a Frustrated Two-Leg Spin Ladder under a Magnetic Field2015

    • Author(s)
      T. Sugimoto, M. Mori, T. Tohyama, and S. Maekawa
    • Journal Title

      Phys. Rev. B

      Volume: 92 Pages: 125114

    • DOI

      10.1103/PhysRevB.92.125114

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Enhanced Charge Excitations in Electron-Doped Cuprates by Resonant Inelastic X-Ray Scattering2015

    • Author(s)
      T. Tohyama, K. Tsutsui, M. Mori, S. Sota, and S. Yunoki
    • Journal Title

      Phys. Rev. B

      Volume: 92 Pages: 014515

    • DOI

      10.1103/PhysRevB.92.014515

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Orbital-selective electronic excitations in iron arsenides revealed by simulated nonresonant inelastic x-ray scattering2015

    • Author(s)
      Kenji Tsutsui, Eiji Kaneshita, and Takami Tohyama
    • Journal Title

      Physical Review B

      Volume: 92 Pages: 195103

    • DOI

      10.1103/PhysRevB.92.195103

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 銅酸化物高温超伝導体における空間不均一性と磁気励起 II2016

    • Author(s)
      森 道康
    • Organizer
      日本物理学会71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-21
  • [Presentation] 銅酸化物高温超伝導体に対する酸素K吸収端共鳴非弾性X線散乱の理論的研究2016

    • Author(s)
      筒井健二,遠山貴己
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-21
  • [Presentation] 鉄系超伝導体母物質における非弾性X線散乱による電子励起の理論的研究2016

    • Author(s)
      筒井健二
    • Organizer
      JAEA放射光科学シンポジウム2016
    • Place of Presentation
      SPring-8, 兵庫県佐用郡佐用町
    • Year and Date
      2016-02-25 – 2016-02-26
  • [Presentation] Theoretical study of magnetic skyrmion and antiskyrmion2016

    • Author(s)
      W. Koshibae
    • Organizer
      CEMS Discussion Meeting "Topological Phenomena in Noncentrosymmetric Magnets"
    • Place of Presentation
      理化学研究所,和光市
    • Year and Date
      2016-01-28
    • Int'l Joint Research / Invited
  • [Presentation] Dynamics of skyrmion and antiskyrmion in magnets2016

    • Author(s)
      W. Koshibae
    • Organizer
      APW-CEMS Joint Workshop
    • Place of Presentation
      理化学研究所,和光市
    • Year and Date
      2016-01-25
    • Int'l Joint Research / Invited
  • [Presentation] Theoretical Study of Cu L-edge RIXS Spectra on Cuprates2016

    • Author(s)
      K. Tsutsui
    • Organizer
      Asia-Pacific Workshop (APW)-CEMS Joint Workshop
    • Place of Presentation
      理化学研究所,和光市
    • Year and Date
      2016-01-25
    • Int'l Joint Research
  • [Presentation] Skyrmionics - Theoretical Design of Skyrmion Memory Device -2015

    • Author(s)
      W. Koshibae
    • Organizer
      The Third RIKEN-NCTU Symposium on Physical and Chemical Science
    • Place of Presentation
      National Chiao Tung University, 1001 University Road, Hsinchu, Taiwan 300, ROC
    • Year and Date
      2015-11-13
    • Int'l Joint Research / Invited
  • [Presentation] Sign change of spin Hall effect in Cu alloys by electrons correlation2015

    • Author(s)
      M. Mori
    • Organizer
      2015 Gordon Godfrey Workshop on Spins and Strong Correlations
    • Place of Presentation
      Sydney, Australia
    • Year and Date
      2015-11-05
    • Int'l Joint Research / Invited
  • [Presentation] Spin Hall effect in Cu alloys and phonon Hall effect: Skew sactterings of electrons and phonons2015

    • Author(s)
      M. Mori
    • Organizer
      The Mainz-Tohoku-JAEA-Kaiserslautern joint workshop on "Spin-orbit Coupling and Spin Mechanics"
    • Place of Presentation
      Mainz Univ. Germany
    • Year and Date
      2015-10-23
    • Int'l Joint Research / Invited
  • [Presentation] 銅酸化物高温超伝導体における空間不均一性と磁気励起2015

    • Author(s)
      森 道康
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学千里山キャンパス
    • Year and Date
      2015-09-19
  • [Presentation] 鉄系超伝導体FeSeの中性子非弾性散乱2015

    • Author(s)
      社本真一, 綿重達哉,石角元志,樹神克明,梶本亮一,中村充孝,笠原成,芝内孝禎,松田祐司,森道康
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学千里山キャンパス
    • Year and Date
      2015-09-18
  • [Presentation] 銅酸化物高温超伝導物質に対する酸素K吸収端RIXSのクラスター計算2015

    • Author(s)
      筒井健二,遠山貴己
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学千里山キャンパス
    • Year and Date
      2015-09-18
  • [Presentation] フラストレートスピン梯子系の磁場誘起相2015

    • Author(s)
      杉本貴則, 森道康, 遠山貴己, 前川禎通
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学千里山キャンパス
    • Year and Date
      2015-09-16
  • [Presentation] Magnetic field dependence of phonons in the terbium gallium garnet2015

    • Author(s)
      M. Mori, A. Spencer-Smith, O.P. Sushkov, S. Maekawa
    • Organizer
      The 20th International Conference on Magnetism (ICM)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-07-06 – 2015-07-10
    • Int'l Joint Research
  • [Presentation] Magnetic properties in a frustrated spin ladder2015

    • Author(s)
      Sugimoto, M. Mori, T. Tohyama, S. Maekawa
    • Organizer
      The 20th International Conference on Magnetism (ICM)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-07-06 – 2015-07-10
    • Int'l Joint Research
  • [Presentation] Towards the sign control of the spin Hall effect in the Cu alloys doped with 5d elements2015

    • Author(s)
      X. Zhuo, B. Gu, M. Mori, T. Ziman, S. Maekawa
    • Organizer
      The 20th International Conference on Magnetism (ICM)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-07-06 – 2015-07-10
    • Int'l Joint Research
  • [Presentation] The Cu alloys doped with 5d elements as materials for the control of the sign of spin Hall effect2015

    • Author(s)
      X. Zhuo, B. Gu, M. Mori, T. Ziman, S. Maekawa
    • Organizer
      New Perspectives in Spintronic and Mesoscopic Physics
    • Place of Presentation
      Kashiwa, Japan
    • Year and Date
      2015-06-11
    • Int'l Joint Research
  • [Presentation] Enhanced Spin Hall Effect in CuBi Alloys2015

    • Author(s)
      B. Gu, X. Zhuo, M. Mori, T. Ziman, S. Maekawa
    • Organizer
      New Perspectives in Spintronic and Mesoscopic Physics
    • Place of Presentation
      Kashiwa, Japan
    • Year and Date
      2015-06-11
    • Int'l Joint Research
  • [Presentation] Dynamics of magnetic skyrmions: Theoretical design of skyrmion devices2015

    • Author(s)
      W. Koshibae
    • Organizer
      International Workshop on Topological Structures in Ferroic Materials
    • Place of Presentation
      University of New South Wales, Sydney, Australia
    • Year and Date
      2015-05-20
    • Int'l Joint Research / Invited

URL: 

Published: 2017-01-06  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi