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Study of spin-lattice interaction in cuprate superconductors using multiple quantum beam techniques

Research Project

Project/Area Number 25390132
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Quantum beam science
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

WAKIMOTO Shuichi  国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門・量子ビーム応用研究センター, リーダー (40399415)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords高温超伝導 / 中性子線 / 放射光X線 / 中性子散乱 / 放射光 / 多重自由度相関 / スピン格子相関
Outline of Final Research Achievements

We performed neutron and synchrotron X-ray scattering study of high-Tc cuprate supeconductors to see entire magnetic escitations. The results shows that the magnetic excitation can be described by two components: one is high-energy dispersing excitation which reflects local interaction between spins, and the other is the low-energy compoment which reflects the itinerant character of the system. Detailed neutron scattering study of low energy magnetic component and the lattice dynamics, we found that the magnetic excitation strongly enhances at the energy where a certain phonon branch crosses, indicating a possible spin-lattice coupling. These results are important regarding the contribution of magnetic excitation to the superconductivity.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (12 results)

All 2015 2014 2013 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 3 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results)

  • [Int'l Joint Research] オークリッジ研究所(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] 欧州放射光施設ESRF(フランス)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Neutron scattering study of spin fluctuations in La2-xSrxCuO4 by ffour-dimensional mapping of neutron cross-sections using the 4SEASONS chopper spectrometer2015

    • Author(s)
      S.Wakimoto, K. Ikeuchi, M. Arai, M. Fujita, R. Kajimoto, S. Kawamura, M. Matsuura, K. Nakajima, K. Yamada
    • Journal Title

      JPS Conference Proceedings

      Volume: 8

    • DOI

      10.7566/jpscp.8.034013

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] High energy magnetic excitations in overdoped La2-xSrxCuO4 studied by neutron and resonant inelastic X-ray scattering2015

    • Author(s)
      S. Wakimoto, K. Ishii, H. Kimura, M. Fujita, G. Dellea, K. Kummer, L. Braicovich, G. Ghiringhelli, L.M. Debeer-Schmitt, G.E. Granroth
    • Journal Title

      Physical Review B

      Volume: 91 Issue: 18

    • DOI

      10.1103/physrevb.91.184513

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Neutron scattering study of spin fluctuations in La2-xSrxCuO4 by four-dimensional mapping of neutron cross-sections using the chopper spectrometer 4SEASONS2015

    • Author(s)
      S. Wakimoto, K. Ikeuchi, M. Arai, M. Fujita, R. Kajimoto, S. Kawamura, M. Matsuura, K. Nakajima, and K. Yamada
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 未定

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Magnetic excitation of hole-overdoped cuprate studied by RIXS and neutron2015

    • Author(s)
      S. Wakimoto
    • Organizer
      SUPERSTRIPES 2015
    • Place of Presentation
      Ischia, Italy
    • Year and Date
      2015-06-13 – 2015-06-18
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Magnetic excitation of hole-overdoped cuprate studied by RIXS and neutron2015

    • Author(s)
      S. Wakimoto
    • Organizer
      SUPERSTRIPES2015
    • Place of Presentation
      Ischia, Italy
    • Year and Date
      2015-06-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 中性子チョッパー分光器を用いた4次元マッピングによるLSCOのマグノンーフォノン結合の探索2015

    • Author(s)
      脇本秀一,池内和彦,新井正敏,藤田全基,梶本亮一,川村奨,松浦直人,中島健次,山田和芳
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      東京
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] Overall magnetic excitation in overdoped La2-xSrxCuO4 studied by complementary use of neutron and X-ray2015

    • Author(s)
      S. Wakimoto
    • Organizer
      The 14th Korea-Japan Meeting on Neutron Science
    • Place of Presentation
      Tokai, Japan
    • Year and Date
      2015-01-07 – 2015-01-09
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] 放射光と中性子を用いた過剰ドープLSCOの磁気励起の研究2014

    • Author(s)
      脇本秀一、石井賢司、木村宏之、藤田全基、梶本亮一、池内和彦、G. E. Granroth、G. Ghiringhelli、L. Braicovich
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Magnetic excitation in overdoped superconductor La2-xSrxCuO4 studied by inelastic neutron and resonant inelastic x-ray scattering2014

    • Author(s)
      S. Wakimoto
    • Organizer
      Super-PIRE REIMEI Workshop on Frontiers of Condensed Matter Physics
    • Place of Presentation
      中国北京 中国科学院物理学研究所
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 中性子と放射光による過剰ドープLa2-xSrxCuO4の高エネルギー磁気励起2013

    • Author(s)
      脇本秀一、石井賢司、木村宏之、藤田全基、梶本亮一、池内和彦、G.E. Granroth, G. Ghiringhelli, L. Braicovich
    • Organizer
      日本中性子科学会年会
    • Place of Presentation
      千葉県柏市ちば県民プラザ
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2022-02-03  

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