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Development of orbital-resolved NMR method and observation of orbital states

Research Project

Project/Area Number 25610092
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionNagoya University

Principal Investigator

ITOH Masayuki  名古屋大学, 理学(系)研究科(研究院), 教授 (90176363)

Research Collaborator SHIMIZU Yasuhiro  名古屋大学, 大学院理学研究科, 講師 (00415184)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords軌道分解核磁気共鳴法 / 電子軌道 / 電子占有率 / 異方的超微細相互作用 / 電気四重極モーメント / 遷移金属酸化物 / バナジウム酸化物 / クロム酸化物 / 軌道物性 / 金属絶縁体転移 / 酸化バナジウム / 電場勾配テンソル / ナイトシフトテンソル / 核磁気共鳴 / 強相関電子系 / 重い電子系 / トランスファー超微細相互作用 / 異方的ナイトシフト
Outline of Final Research Achievements

Novel physical properties due to orbital degrees of freedom have been found in 3d transition metal oxides. We have developed a method called the angle-resolved nuclear magnetic resonance to study each electron contribution to the physical properties. Utilizing the anisotropic hyperfine interaction between a nucleus and the 3d electrons, we obtained the 3d electron occupation number and magnetic susceptibility of each orbital in several vanadium and chromium oxides and showed that this method is useful for revealing the orbital states.

Report

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

    (8 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) Remarks (2 results)

  • [Journal Article] Site-selective Mott transition in a quasi-one-dimensional vanadate V6O132015

    • Author(s)
      Y. Shimizu, S. Aoyama, T. Jinno, M. Itoh, Y. Ueda
    • Journal Title

      Phys. Rev. Lett.

      Volume: 114 Issue: 16 Pages: 166403-166403

    • DOI

      10.1103/physrevlett.114.166403

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Local electronic state in the high-valence hollandite chromium oxide K_2Cr_8O_<16> investigated by ^<53>Cr NMR2013

    • Author(s)
      Hikaru Takeda
    • Journal Title

      Physical Review B

      Volume: 88 Issue: 16

    • DOI

      10.1103/physrevb.88.165107

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 高圧下における重い電子系LiV2O4の軌道状態と磁気ゆらぎ2015

    • Author(s)
      吉村政洋,加藤優介,武田晃,清水康弘,伊藤正行,新高誠司,高木英典
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学早稲田キャンパス
    • Year and Date
      2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 重い電子的挙動を示すLiV2O4の軌道状態と磁気揺らぎの圧力効果2014

    • Author(s)
      吉村政洋,加藤優介,清水康弘,武田晃,伊藤正行,新高誠司,高木英典
    • Organizer
      日本物理学会2014年秋季大会
    • Place of Presentation
      中部大学春日井キャンパス
    • Year and Date
      2014-09-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] Orbital reconstruction on metal-insulator transitions of LiVO2 and VO2

    • Author(s)
      Y. Shimizu, T. Jin-no, M. Itoh, S. Niitaka, H. Takagi, and Y. Ueda
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2013
    • Place of Presentation
      Uiversity of Tokyo, Tokyo, Japan
    • Related Report
      2013 Research-status Report
  • [Presentation] 重い電子系LiV2O4における圧力下軌道状態の研究

    • Author(s)
      吉村政洋,清水康弘,武田晃,伊藤正行,新高誠司,高木英典
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学湘南キャンパス
    • Related Report
      2013 Research-status Report
  • [Remarks] 名古屋大学大学院理学研究科物理学教室固体磁気共鳴研究室

    • URL

      http://i-ken.phys.nagoya-u.ac.jp/index_j.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 名古屋大学大学院理学研究科物理学教室固体磁気共鳴研究室

    • URL

      http://i-ken.phys.nagoya-u.ac.jp/index_j.html

    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2020-05-15  

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