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2012 Fiscal Year Final Research Report

Observation of magnetic excitations in 5d transition metal oxides by resonant inelastic scattering of synchrotron radiation x-rays

Research Project

  • PDF
Project/Area Number 23740246
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

ISHII Kenji  独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究主幹 (40343933)

Project Period (FY) 2011 – 2012
KeywordsX線散乱 / 非弾性散乱 / 磁気励起 / 強相関電子系
Research Abstract

I demonstrated in this research that magnetic excitations in 5d transition metal oxides, focusing on iridium oxides here, can be observed by resonant inelastic scattering using synchrotron radiation x-rays. I introduced new optical devices and achieved the best energy resolution of 70 meV. Using the high-energy resolution, I successfully observed dispersive magnetic excitations in Sr_2_IrO_4 and Sr_3Ir_2O_7 and their temperature dependence, which clarified the effect of two-dimensional magnetic interaction in the materials.

  • Research Products

    (6 results)

All 2013 2012 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (4 results)

  • [Journal Article] Inelastic x-ray scattering studies of electronic excitations2013

    • Author(s)
      Kenji Ishii, Takami Tohyama, and Jun'ichiro Mizuki
    • Journal Title

      Journal Physical Society of Japan

      Volume: Vol. 82 Pages: 021015-1-24

    • DOI

      DOI:10.1143/JPSJ.82.021015

    • Peer Reviewed
  • [Journal Article] Instrumental upgrades of the RIXS spectrometer at BL11XU at SPring-8

    • Author(s)
      K. Ishii, I. Jarrige, M. Yoshida, K. Ikeuchi, T. Inami, Y. Murakami, and J. Mizuki
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena

      Volume: (accepted and to be published)

    • DOI

      DOI:10.1016/j.elspec.2012.12.003

    • Peer Reviewed
  • [Presentation] Symmetry of d-d excitations in inelastic x-ray scattering2013

    • Author(s)
      K. Ishii el al.
    • Organizer
      JAEA Synchrotron Radiation Research Symposium "Magnetism in Quantum Beam Science"
    • Place of Presentation
      兵庫県佐用町
    • Year and Date
      2013-03-12
  • [Presentation] Recent RIXS results on charge and orbital excitations and their connection to future NIXS2012

    • Author(s)
      K. Ishii
    • Organizer
      RIKEN Workshop "High-Resolution Spectroscopy with X-Rays"
    • Place of Presentation
      埼玉県和光市
    • Year and Date
      2012-11-15
  • [Presentation] Momentum-resolved electronic excitations probed with resonant inelastic x-ray scattering2012

    • Author(s)
      K. Ishii
    • Organizer
      JAEA Symposium on Synchrotron Radiation Research 2012
    • Place of Presentation
      兵庫県佐用町
    • Year and Date
      2012-03-07
  • [Presentation] 低エネルギー電子励起観測に向けた共鳴非弾性X線散乱分光器の高度化2012

    • Author(s)
      石井賢司, 他
    • Organizer
      第25回日本放射光学会年会放射光科学合同シンポジウム
    • Place of Presentation
      愛知県名古屋市
    • Year and Date
      2012-01-09

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Published: 2014-09-25  

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