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Novel physical properties induced by mobile ions in strongly correlated electron systems

Research Project

Project/Area Number 17K05034
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied materials
Research InstitutionThe University of Tokushima

Principal Investigator

KAWASAKI Yu  徳島大学, 大学院社会産業理工学研究部(理工学域), 准教授 (10346588)

Co-Investigator(Kenkyū-buntansha) 中村 浩一  徳島大学, 大学院社会産業理工学研究部(理工学域), 教授 (20284317)
岸本 豊  徳島大学, 大学院社会産業理工学研究部(理工学域), 教授 (80201458)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords可動イオン / 遷移金属酸化物 / 強相関系 / 金属絶縁体転移 / 電荷分離の微視的観測 / 強相関電子系 / 物性実験
Outline of Final Research Achievements

In transition metal oxides with defects, we have investigated how the motion of ions affects the 3d electronic state of transition metal and causes unique physical phenomena such as metal-insulator transition. Especially, in one of the mixed-valence vanadium oxides, it has been revealed that the metal-insulator transition is caused by silver ion ordering, which triggers the charge ordering of 3d electrons on vanadium. It is considered that the charge ordering pattern is strongly associated with the arrangement of silver ions.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果により,可動イオンの運動や秩序/無秩序が物質の電気・磁気的性質を支配する電子の状態にどのような影響を与えるのかが明らかになった。この結果は酸化物の材料設計に新しい指針を与え,可動イオンのイオンダイナミクスが引き起こす新しい電子物性の創出に結びつくと期待される。また,欠損が構造や電子状態と結びついて面白い物性を示す系が,物性研究の対象として大きく広がっていくと考えられる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017 Other

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

  • [Int'l Joint Research] マックスプランク物理学研究所(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 中国科学院(中国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] NMR Study of Magnetic Structure in α-CoV2O62020

    • Author(s)
      Kawasaki Yu、Mori Hiro、Kishimoto Yutaka、Nakamura Koichi、He Zhangzhen、Itoh Mitsuru
    • Journal Title

      JPS Conf. Proc.

      Volume: 30 Pages: 011088-011088

    • DOI

      10.7566/jpscp.30.011088

    • NAID

      130007736975

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 51V-NMR study of charge order induced by cation order in δ-Ag2/3V2O52017

    • Author(s)
      Kawasaki Y.、Morioka R.、Kishimoto Y.、Nakamura K.、Nishiyama K.、Koyama T.、Mito T.、Baba T.、Yamauchi T.、Isobe M.、Ueda Y.
    • Journal Title

      Journal of Physics: Conf. Series

      Volume: 807 Pages: 062001-062001

    • DOI

      10.1088/1742-6596/807/6/062001

    • NAID

      120006535042

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] α-CoV2O6における磁気構造とスピンダイナミクス2020

    • Author(s)
      川崎祐,岸本豊,中村浩一,真岸孝一,何長振,伊藤満
    • Organizer
      日本物理学会年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] バナジウムブロンズAg2/3V2O5における金属絶縁体転移のNMRによる研究2019

    • Author(s)
      川崎祐,岸本 豊,中村浩一,水戸毅,磯部正彦,馬場拓行, 山内徹,上田寛
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] NMR Study of Magnetic Structure in α-CoV2O62019

    • Author(s)
      Yu Kawasaki, Hiro Mori, Yutaka Kishimoto, Koichi Nakamura, Zhangzhen He, and Mitsuru Itoh
    • Organizer
      The International Conference on Strongly Correlated Electron Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A15型超伝導体V3SiのSi-NMRによる研究2019

    • Author(s)
      野尻野旭, 森寛央, 川崎祐, 岸本豊, 中村浩一, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 小手川恒, 菅原仁
    • Organizer
      日本物理学会年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] A15型超伝導体V3SiのSi-NMRによる研究2018

    • Author(s)
      森寛央, 野尻野旭, 川崎祐, 岸本豊, 中村浩一, 小山岳秀, 水戸毅, 八島光晴, 椋田秀和, 小手川恒, 菅原仁
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] α-CoV2O6における磁気構造のNMRによる研究2018

    • Author(s)
      森寛央, 川崎祐, 岸本豊, 中村浩一, 何長振, 伊藤満
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Na系遷移金属酸化物における電気伝導のNa組成依存性2018

    • Author(s)
      中村浩一
    • Organizer
      日本物理学会年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Na系遷移金属酸化物における局所構造とNa+イオンの運動状態2017

    • Author(s)
      中村浩一
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] A15型超伝導体V3SiのSi-NMRによる研究II2017

    • Author(s)
      川崎祐
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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