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

Dynamics of Phonon and fluctuation probed by time-resolved resonant x-ray scattering

Research Project

Project/Area Number 18K03534
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
Research InstitutionTokyo Institute of Technology (2019-2022)
The University of Tokyo (2018)

Principal Investigator

Takubo Kou  東京工業大学, 理学院, 特任助教 (30738365)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords光誘起ダイナミクス / 光誘起相転移ダイナミクス / 共鳴軟X線散乱 / X線分光 / スピンダイナミクス / 強相関電子系 / 電子線回折 / スピン・軌道揺らぎ / 量子スピン軌道液体 / フォノン
Outline of Final Research Achievements

We have studied an orbital fluctuation dynamics of transition-metal oxide Ba3CuSb2O9 by means of time-resolved resonant soft x-ray scattering. A pre-edge structure originating from oxygen holes is observed at the pre-edge region of the O 1s edge of the x-ray absorption for the hexagonal Ba3CuSb2O9, which realizes the quantum spin and orbital liquid state. Furthermore, a coherent oscillation with a relatively long period around 6 GHz is observed on the photoinduced dynamics of the soft x-ray resonant scattering at the Cu L3 edge, while this coherent oscillation is not realized on the orthorhombic sample that contain a static Jahn-Teller distortion in the Cu sites. These results indicate the presence of oxygen holes in the sample closely relates the quantum spin-orbital entanglement liquid state and can be controlled optical excitation.

Academic Significance and Societal Importance of the Research Achievements

一般の遷移金属化合物の単一サイトの光学フォノンモードはフェムト秒のオーダーであるため、今までのピコ秒領域の時間分解能のX線散乱などの測定では、コヒーレント振動がほとんど観測されることがなかった。量子スピン軌道液体状態が低温で実現するBa3CuSb2O9は複数のCuサイトの自由度が競合する系であり、放射光X線を用いた時間分解型の共鳴軟X線散乱のダイナミクス測定という最先端の手法を用いて、その軌道-スピン揺らぎの状態と密接に関連する数10ps領域のコヒーレントフォノンを観測することに初めて成功した。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (9 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] Helmholtz-Zentrum Berlin (HZB)(ドイツ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Photoinduced transient states of antiferromagnetic orderings in La<sub>1/3</sub>Sr<sub>2/3</sub>FeO<sub>3</sub> and SrFeO<sub>3-δ</sub> thin films observed through time-resolved resonant soft x-ray scattering2022

    • Author(s)
      Yamamoto Kohei、Tsuyama Tomoyuki、Ito Suguru、Takubo Kou、Matsuda Iwao、Pontius Niko、Schussler-Langeheine Christian、Minohara Makoto、Kumigashira Hiroshi、Yamasaki Yuichi、Nakao Hironori、Murakami Youichi、Katase Takayoshi、Kamiya Toshio、Wadati Hiroki
    • Journal Title

      New Journal of Physics

      Volume: 24 Issue: 4 Pages: 043012-043012

    • DOI

      10.1088/1367-2630/ac5f31

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Domain Dependent Fermi Arcs Observed in a Striped Phase Dichalcogenide2022

    • Author(s)
      Takashi Mizokawa, Alexei Barinov, Viktor Kandyba, Alessio Giampietri, Ryoya Matsumoto, Yohei Okamoto, Kou Takubo, Koji Miyamoto, Taichi Okuda, Sunseng Pyon, Hiroyuki Ishii, Kazutaka Kudo, Minoru Nohara, Naurang L. Saini
    • Journal Title

      Advanced Qunatum Technologies

      Volume: 5 Issue: 9 Pages: 202300029-202300029

    • DOI

      10.1002/qute.202200029

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photo-induced antiferromagnetic-ferromagnetic and spin-state transition in a double-perovskite cobalt oxide thin film2022

    • Author(s)
      Zhang Yujun、Katayama Tsukasa、Chikamatsu Akira、Schussler-Langeheine Christian、Pontius Niko、Hirata Yasuyuki、Takubo Kou、Yamagami Kohei、Ikeda Keisuke、Yamamoto Kohei、Hasegawa Tetsuya、Wadati Hiroki
    • Journal Title

      Communications Physics

      Volume: 5 Issue: 1 Pages: 50-50

    • DOI

      10.1038/s42005-022-00823-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spin-orbital liquid in Ba3CuSb2O9 stabilized by oxygen holes2021

    • Author(s)
      Takubo Kou、Man Huiyuan、Nakatsuji Satoru、Yamamoto Kohei、Zhang Yujun、Hirata Yasuyuki、Wadati Hiroki、Yasui Akira、Mizokawa Takashi、Khomskii Daniel I.
    • Journal Title

      Physical Review Materials

      Volume: 5 Issue: 7 Pages: 1-7

    • DOI

      10.1103/physrevmaterials.5.075002

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 6-GHz lattice response in a quantum spin-orbital liquid probed by time-resolved resonant x-ray scattering2021

    • Author(s)
      Takubo Kou、Mizokawa Takashi、Man Huiyuan、Yamamoto Kohei、Zhang Yujun、Hirata Yasuyuki、Wadati Hiroki、Khomskii Daniel I.、Nakatsuji Satoru
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 20 Pages: 1-5

    • DOI

      10.1103/physrevb.104.205110

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Vanadium 3d charge and orbital states in V2OPO4 probed by x-ray absorption spectroscopy2020

    • Author(s)
      Murota Kota、Pachoud Elise、Attfield J. Paul、Glaum Robert、Sutarto Ronny、Takubo Kou、Khomskii Daniel I.、Mizokawa Takashi
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 24 Pages: 1-7

    • DOI

      10.1103/physrevb.101.245106

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Hard and soft x-ray photoemission spectroscopy study of the new Kondo system SmO thin film2020

    • Author(s)
      Sakamoto Shoya、Kaminaga Kenichi、Oka Daichi、Yukawa Ryu、Horio Masafumi、Yokoyama Yuichi、Yamamoto Kohei、Takubo Kou、Nonaka Yosuke、Koshiishi Keisuke、Kobayashi Masaki、Tanaka Arata、Yasui Akira、Ikenaga Eiji、Wadati Hiroki、Kumigashira Hiroshi、Fukumura Tomoteru、Fujimori Atsushi
    • Journal Title

      Physical Review Materials

      Volume: 4 Issue: 9 Pages: 1-5

    • DOI

      10.1103/physrevmaterials.4.095001

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Interfacial-hybridization-modified Ir ferromagnetism and electronic structure in LaMnO3/SrIrO3 superlattices2020

    • Author(s)
      Y. Zhang、L. Y. Zheng、L. Wu、M. Suzuki、Q. Zhang、Y. Hirata、K. Yamagami、K. Takubo、K. Ikeda、K. Yamamoto、A. Yasui、N. Kawamura、C. Lin、K. Koshiishi、X. Lin、S. L. Liu、J. Zhang、Y. Hotta、X. R. Wang、A. Fujimori、Y. Lin、C. Nan、L. Shen、H. Wadati
    • Journal Title

      Physical Review Research

      Volume: 2 Issue: 3 Pages: 1-9

    • DOI

      10.1103/physrevresearch.2.033496

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Commensurate versus incommensurate charge ordering near the superconducting dome in Ir1-xPtxTe2 revealed by resonant x-ray scattering2018

    • Author(s)
      Takubo K.、Yamamoto K.、Hirata Y.、Wadati H.、Mizokawa T.、Sutarto R.、He F.、Ishii K.、Yamasaki Y.、Nakao H.、Murakami Y.、Matsuo G.、Ishii H.、Kobayashi M.、Kudo K.、Nohara M.
    • Journal Title

      Physical Review B

      Volume: 97 Issue: 20 Pages: 1-9

    • DOI

      10.1103/physrevb.97.205142

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] テーブルトップフェムト秒電子線回折装置の開発2022

    • Author(s)
      田久保耕,Samiran Banu,金子水咲,矢嶋渉,羽田真毅,林靖彦,桑原真人,石川忠彦,沖本洋一,腰原伸也
    • Organizer
      2021日本第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 数十フェムト秒電子線回折装置の開発:シリコン薄膜の光誘起ダイナミクス2021

    • Author(s)
      田久保耕,Jin Sichen, Samiran Banu,金子水咲,石川忠彦,沖本洋一,腰原伸也,矢嶋渉,羽田真毅, 林靖彦
    • Organizer
      2021日本物理学会秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 新同期方式によるフェムト秒電子線回折装置の開発2021

    • Author(s)
      Jin Sichen, 田久保耕, S. Banu, 金子水咲, 石川忠彦, 沖本洋一, 腰原伸也, 羽田真毅, 林靖彦
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 光誘起構造ダイナミクス測定のためのテーブルトップフェムト秒時間分解電子線回折装置の開発2020

    • Author(s)
      田久保耕, Jin Sichen, 羽田真毅, 東正樹, 林靖彦, 桑原真人, 宮坂等, 石原純夫, 石川忠彦, 沖本洋一, 腰原伸也
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Photo-induced dynamics of transition-metal compounds probed by time-resolved resonant soft x-ray scattering and x-ray magnetic circular dichroism2020

    • Author(s)
      K. Takubo, K. Yamamoto, Y. Yokoyama, K. Yamagami, Y. Zhang, Y. Hirata, H. Wadati
    • Organizer
      Gordon Research Conference: Ultrafast Phenomena in Cooperative Systems
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 時間分解X線磁気円偏光2色性及び共鳴軟X線散乱による超高速磁気ダイナミクス観測2019

    • Author(s)
      田久保耕, 山本航平, 横山優一, Y Zhang, 山神光平, 平田靖透, 関剛斎, 高梨弘毅, H Man, 中辻知, 和達大樹
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 時間分解共鳴軟 X 線散乱によるスピン軌道液体Ba3CuSb2O9の光誘起ダイナミクス測定II2019

    • Author(s)
      田久保耕, 山本航平, 平田靖透, 和達大樹, Huiyuan Man, 中辻知
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 時間分解共鳴軟 X 線散乱によるスピン軌道液体Ba3CuSb2O9の光誘起ダイナミクス測定2019

    • Author(s)
      田久保耕, 山本航平, 平田靖透, 和達大樹, Huiyuan Man, 中辻知
    • Organizer
      第32回日本放射光学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Photoinduced dynamics of spin-orbital liquid Ba3CuSb2O9 probed by time-resolved resonant soft x-ray scattering2018

    • Author(s)
      K. Takubo, K. Yamamoto, Y. Hirata, H. Wadati, Huiyuan Man, S. Nakatsuji
    • Organizer
      International Workshop on Trends in Advanced Spectroscopy in Materials Science
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 時間分解共鳴軟 X 線散乱によるスピン軌道液体Ba3CuSb2O9の光誘起ダイナミクス測定2018

    • Author(s)
      田久保耕, 山本航平, 平田靖透, 和達大樹, Huiyuan Man, 中辻知
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi