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Creation of unusual valence compounds and the exploration of novel functions - making use of extreme conditions

Research Project

Project/Area Number 17H01195
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic chemistry
Research InstitutionOsaka University (2018-2019)
The University of Tokyo (2017)

Principal Investigator

Ishiwata Shintaro  大阪大学, 基礎工学研究科, 教授 (00525355)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥44,460,000 (Direct Cost: ¥34,200,000、Indirect Cost: ¥10,260,000)
Fiscal Year 2019: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2018: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2017: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Keywords高圧合成 / 異常高原子価 / 遷移金属酸化物 / らせん磁性 / 巨大交差相関応答 / ペロブスカイト型酸化物 / 強相関電子系 / 異常高原子価遷移金属酸化物 / 電子・電気材料 / 複合材料・物性
Outline of Final Research Achievements

We have comprehensively synthesized new perovskite-related compounds containing anomalously high valence 3d transition-metal ions by a high-pressure technique, and discovered a rich variety of unconventional structure and physical properties, reflecting the strong pd hybridization. Notable achievements include the synthesis of novel perovskite PrCuO3 with a quasi-1D structure system and the observation of metal-insulator transition due to an inter-site charge transfer in its derivative, the discovery of novel helimagnetic ordering and giant magnetovolume effect in Sr1-xBaxCoO3 and Sr1-xCaxCoO3, and the discovery of various spin-charge-ordered phases in (Sr,Ba,La)FeO3.

Academic Significance and Societal Importance of the Research Achievements

特異な構造と電荷分布を有するPrCuO3およびその置換系(La,Pr)CuO3、強磁性ーらせん磁性転移を示す(Sr,Ba,Ca)CoO3、新奇なトポロジカルらせん磁性を示すSrFeO3とその置換系(Sr,Ba,La)FeO3、というペロブスカイト型構造を有する3種類の新規異常高原子価遷移金属酸化物群の高圧合成と新物性探索を進めたことは、強相関物質科学及び高圧物質科学の基礎学理構築に大きな寄与をもたらしたと言える。また、立方晶ペロブスカイト(Sr,Ba)CoO3における巨大磁気体積効果の発見は、新たな高性能センサ材料や磁気アクチュエータへの応用展開が期待される。

Report

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

    (52 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (6 results) Journal Article (12 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 12 results,  Open Access: 5 results) Presentation (32 results) (of which Int'l Joint Research: 13 results,  Invited: 11 results) Remarks (2 results)

  • [Int'l Joint Research] Max-Planck-Institut/Technische University Munchen/TU Dresden(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Paul Scherrer Institut(スイス)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Chinese Academy of Sciences(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] STFC Rutherford Appleton Laboratory,(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Laboratory for Quantum Magnetism, EPFL(スイス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Paul Scherrer Institut(スイス)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Emergent topological spin structures in centrosymmetric cubic perovskite SrFeO32020

    • Author(s)
      S. Ishiwata, T. Nakajima, J. -H. Kim, D. S. Inosov, N. Kanazawa, J. S. White, J. L. Gavilano, R. Georgii, K. M. Seemann, G. Brandl, P. Manuel, D. D. Khalyavin, S. Seki, Y. Tokunaga, M. Kinoshita, Y. W. Long, Y. Kaneko, Y. Taguchi, T. Arima, B. Keimer, and Y. Tokura
    • Journal Title

      Phys. Rev. B

      Volume: 101 Issue: 13 Pages: 134406-134406

    • DOI

      10.1103/physrevb.101.134406

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Field-induced spin reorientation in the antiferromagnetic Dirac material EuMnBi2 revealed by neutron and resonant x-ray diffraction2020

    • Author(s)
      H. Masuda, H. Sakai, H. Takahashi, Y. Yamasaki, A. Nakao, T. Moyoshi, H. Nakao, Y. Murakami, T. Arima, S. Ishiwata
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 17 Pages: 174411-174411

    • DOI

      10.1103/physrevb.101.174411

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prediction of perovskite-related structures in ACuO3-x (A = Ca, Sr, Ba, Sc, Y, La) using density functional theory and Bayesian optimization2020

    • Author(s)
      A. Seko and S. Ishiwata
    • Journal Title

      Phys. Rev. B

      Volume: 101 Issue: 13 Pages: 134101-134101

    • DOI

      10.1103/physrevb.101.134101

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Large Magneto-piezoelectric Effect in EuMnBi2 Single Crystal at Low Temperatures2020

    • Author(s)
      Yuki Shiomi, Hidetoshi Masuda, Hidefumi Takahashi, Shintaro lshiwata
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 7574-7574

    • DOI

      10.1038/s41598-020-64530-2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Switching of band inversion and topological surface states by charge density wave2020

    • Author(s)
      Mitsuishi N.、Sugita Y.、Bahramy M. S.、Kamitani M.、Sonobe T.、Sakano M.、Shimojima T.、Takahashi H.、Sakai H.、Horiba K.、Kumigashira H.、Taguchi K.、Miyamoto K.、Okuda T.、Ishiwata S.、Motome Y.、Ishizaka K.
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 24661-9

    • DOI

      10.1038/s41467-020-16290-w

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Giant enhancement of cryogenic thermopower by polar structural instability in the pressurized semimetal MoTe22019

    • Author(s)
      Hidefumi Takahashi, Kento Hasegawa, Tomoki Akiba, Hideaki Sakai, Mohammad Saeed Bahramy, Shintaro Ishiwata
    • Journal Title

      Physical Review B

      Volume: 100 Issue: 19

    • DOI

      10.1103/physrevb.100.195130

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High pressure synthesis of a quasi-one-dimensional GdFeO3-type perovskite PrCuO3 with nearly divalent Cu ions2019

    • Author(s)
      Ito Masaharu、Takahashi Hidefumi、Sakai Hideaki、Sagayama Hajime、Yamasaki Yuichi、Yokoyama Yuichi、Setoyama Hiroyuki、Wadati Hiroki、Takahashi Kanako、Kusano Yoshihiro、Ishiwata Shintaro
    • Journal Title

      Chemical Communications

      Volume: 55 Issue: 61 Pages: 8931-8934

    • DOI

      10.1039/c9cc04656a

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Negative-pressure-induced helimagnetism in ferromagnetic cubic perovskites Sr$_{1-x}$Ba$_{x}$CoO$_{3}$2018

    • Author(s)
      H. Sakai, S. Yokoyama, A. Kuwabara, J. S. White, E. Canevet, H. M. Ronnow, T. Koretsune, R. Arita, A. Miyake, M. Tokunaga, Y. Tokura, and S. Ishiwata
    • Journal Title

      Phys. Rev. Mater.

      Volume: 2 Issue: 10 Pages: 104412-104412

    • DOI

      10.1103/physrevmaterials.2.104412

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of antiferromagnetic order on Landau-level splitting of quasi-two-dimensional Dirac fermions in EuMnBi$_2$2018

    • Author(s)
      H. Masuda, H. Sakai, M. Tokunaga, M. Ochi, H. Takahashi, K. Akiba, A. Miyake, K. Kuroki, Y. Tokura, and S. Ishiwata
    • Journal Title

      Phys. Rev. B (Rapid communication)

      Volume: 98 Issue: 16 Pages: 161108-161108

    • DOI

      10.1103/physrevb.98.161108

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-Pressure Synthesis of Perovskite-Type Oxides with Unusually High Valence Iron/Cobalt Ions and Exploration of Novel Magnetic Phases2018

    • Author(s)
      石渡 晋太郎, 高橋 英史, 酒井 英明
    • Journal Title

      The Review of High Pressure Science and Technology

      Volume: 28 Issue: 3 Pages: 206-216

    • DOI

      10.4131/jshpreview.28.206

    • NAID

      130007495800

    • ISSN
      0917-639X, 1348-1940
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-pressure synthesis of an unusual antiferromagnetic metal CaCoO3 with GdFeO3-type perovskite structure.2017

    • Author(s)
      T. Osaka, H. Takahashi, H. Sagayama, Y. Yamasaki, S. Ishiwata
    • Journal Title

      PHYSICAL REVIEW B.

      Volume: 95 Issue: 22 Pages: 224440-224440

    • DOI

      10.1103/physrevb.95.224440

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical Magnetoelectric Resonance in a Polar Magnet (Fe,Zn)2Mo3O8 with Axion-Type Coupling2017

    • Author(s)
      T. Kurumaji, Y. Takahashi, J. Fujioka, R. Masuda, H. Shishikura, S. Ishiwata and Y. Tokura
    • Journal Title

      PHYSICAL REVIEW LETTERS

      Volume: 119 Issue: 7

    • DOI

      10.1103/physrevlett.119.077206

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] ペロブスカイト型鉄酸化物(Sr1-xBax)2/3La1/3FeO3 における新奇スピン・電荷秩序相の探索2020

    • Author(s)
      小野瀬雅穂, 高橋英史, 佐賀山基, 山﨑裕一, 佐藤拓朗, 賀川史敬, 石渡晋太郎
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] (Sr1-xBax)2/3La1/3FeO3のX線吸収分光2020

    • Author(s)
      高橋龍之介, Yujun Zhang, 大山耕平, 光田暁弘, 高橋英史, 小野瀬雅穂, 石渡晋太郎, 伊奈稔哲, 瀬戸山寛之, 和達大樹
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 超強磁場下磁気輸送測定による磁性半金属α-EuP3のフェルミ面解析2020

    • Author(s)
      メイヨーアレックス浩, 高橋英史, 野本敦朗, 酒井英明, 三宅厚志, 徳永将史, M. S. Bahramy, 石渡晋太郎
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 反強磁性ディラック半金属EuMnBi2の内部磁場測定2020

    • Author(s)
      熊崎将司, 清水康弘, 伊藤正行, 増田英俊, 酒井英明, 石渡晋太郎
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] High Pressure Synthesis of a novel quasi-one-dimensional perovskite PrCuO3 with unusual charge distribution2020

    • Author(s)
      Shintaro Ishiwatqa
    • Organizer
      The 20th Korea-Taiwan-Japan Symposium on Strongly Correlated Electron Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Giant positive magnetoresistance under global fields in Polar Magnetic Semiconductor AgCrSe22019

    • Author(s)
      Shintaro Ishiwata
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2019 (SCES '19)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High pressure synthesis of black and red phosphorus analogues with magnetic ions2019

    • Author(s)
      A. H. Mayo, H. Takahashi, Y. Hayashi and S. Ishiwata
    • Organizer
      Polish Scientific Networks (PSN 2019) conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Various topological and helical spin structures in centrosymmetric perovskites synthesized by high pressure oxygen annealing2019

    • Author(s)
      Shintaro Ishiwata
    • Organizer
      The 11th International Conference on the Science and Technology for Advanced Ceramics (STAC-11)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Finding New Polymorphs of Layered Transition Metal Dichalcogenides2019

    • Author(s)
      Shintaro Ishiwata
    • Organizer
      The 1st Workshop of Reaction Infography
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 新しい磁性リン化合物の高圧合成:変幻自在のボンドとバンド2019

    • Author(s)
      石渡 晋太郎、メイヨーアレックス浩、林佑樹、高橋英史
    • Organizer
      第4回固体化学フォーラム研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 新規層状ペロブスカイト型4d遷移金属酸化物の高圧合成と電子状態の研究2019

    • Author(s)
      倉田伊織, 杉本雛乃, 高橋英史, 野本拓也, 有田亮太郎, 石渡晋太郎
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 反転対称性をもつ三角格子らせん磁性体の新規開拓とトポロジカルホール効果の観測2019

    • Author(s)
      青野快, 高橋英史, 石渡晋太郎
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 新規な構造を持つ磁性リン化合物の高圧合成と輸送測定2019

    • Author(s)
      林祐樹, 高橋英史, 倉田伊織, 石渡晋太郎
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] High pressure synthesis of a new perovskitetype cuprate with doped CuO chains2019

    • Author(s)
      Masaharu Ito, Hidefumi Takahashi, Hideaki Sakai, Jun Fujioka, Masayuki Ochi, Shiro Sakai, Ryotaro Arita, Hajime Sagayama, Yuichi Yamasaki, Yuichi Yokoyama, Hiroki Wadati, Yoshihiro Kusano, Yoshinori Tokura, Shintaro Ishiwata
    • Organizer
      American Physical Society (APS) spring meeting 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Topological and helical spin structures in centrosymmetric cubic perovskites2018

    • Author(s)
      Shintaro Ishiwata
    • Organizer
      The 2nd Asia Pacific Workshop on Quantum Magnetism
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Critical enhancement of cryogenic thermopower in a structurally controlled polar semimetal MoTe22018

    • Author(s)
      Shintaro Ishiwata
    • Organizer
      E-MRS (European Materials Research Society) 2018 Fall meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ペロブスカイト型酸化物Sr1-xLaxFeO3における多彩なスピン・電荷秩序相の全貌2018

    • Author(s)
      小野瀬雅穂, 高橋英史, 佐賀山基, 山﨑裕一, 十倉好紀, 石渡晋太郎
    • Organizer
      日本物理学会2018秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ビスマス正方格子を含む新規多層ディラック電子系候補物質の開拓2018

    • Author(s)
      増田英俊, 酒井英明, 高橋英史, 石渡晋太郎
    • Organizer
      日本物理学会2018秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 巨大磁気抵抗効果を示す極性磁性半導体AgCrSe2の磁気熱電特性2018

    • Author(s)
      高橋英史, 秋葉智起, 秋葉和人, 三宅厚志, 徳永将史, 石渡晋太郎
    • Organizer
      日本物理学会2018秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 磁性半金属α-EuP3における巨大異常Hall効果の異方性2018

    • Author(s)
      メイヨーアレックス浩, 高橋英史, 野本敦朗, 増田英俊, 酒井英明, 秋葉和人, 三宅厚志, 徳永将史, M. S. Bahramy, 石渡晋太郎
    • Organizer
      日本物理学会2018秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] マグネトプランバイト型コバルト酸化物SrCo12O19における中性子回折実験2018

    • Author(s)
      浅井晋一郎, 菊池帆高, 高橋英史, 石渡晋太郎, Studer Andrew, 益田隆嗣
    • Organizer
      日本物理学会2018秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] High pressure synthesis of a cubic perovskite Sr1-xBaxCoO3 showing giant magnetovolume effect2017

    • Author(s)
      S. Ishiwata
    • Organizer
      The 12th Pacific Rim Conference on Ceramic and Glass Technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High pressure synthesis of novel perovskite-type 3d-transition-metal oxides with unusual structure-property relationship2017

    • Author(s)
      S. Ishiwata
    • Organizer
      26th AIRAPT International Conference on on High pressure science and technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High pressure synthesis of GdFeO3-type cuprates with quasi-one-dimensional Cu-O chain2017

    • Author(s)
      S. Ishiwata
    • Organizer
      IUMRS ICAM 2017: The 15th International Conference on Advanced Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High pressure synthesis of GdFeO3-type cuprates with quasi-one-dimensional Cu-O chain2017

    • Author(s)
      石渡晋太郎
    • Organizer
      物性研究所短期研究会 光で見る・操る電子物性科学の最前線 ~強相関, トポロジー, 低次元, ダイナミクス~
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 擬1次元Cu-O鎖を持つ新規ぺロブスカイトPrCuO3に対するLa置換効果および圧力効果2017

    • Author(s)
      高橋英史、伊藤雅春、藤岡淳、酒井英明、佐賀山基、山﨑裕一、草野圭弘、横山優一、田久保耕、平田靖透、和達大樹、寺倉千恵子、越智正之, 酒井志朗、有田亮太郎、十倉好紀、石渡晋太郎
    • Organizer
      第2回固体化学フォーラム研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 新規ペロブスカイト型コバルト酸化物Sr1-xCaxCoO3の構造と物性2017

    • Author(s)
      小坂雄大、高橋英史、佐賀山基、山﨑裕一、石渡晋太郎
    • Organizer
      第2回固体化学フォーラム研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 新規ペロブスカイト型コバルト酸化物Sr1-xCaxCoO3の構造と物性2017

    • Author(s)
      小坂雄大、高橋英史、佐賀山基、山﨑裕一、石渡晋太郎
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 立方晶ペロブスカイトSrFe0.8Rh0.2O3における強磁性相関の温度・圧力依存性2017

    • Author(s)
      木下正貴, 酒井英明, 中島多朗, 林直顕, Hui Wu, 有馬孝尚, 十倉好紀, 高野幹夫, 石渡晋太郎
    • Organizer
      日本物理学会 2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 擬1次元Cu2+-O鎖をもつ新規ペロブスカイト型銅酸化物PrCuO3の高圧合成2017

    • Author(s)
      伊藤雅春,高橋英史,酒井英明,越智正之,酒井志朗,有田亮太郎,藤岡淳,横山優一,和達大樹, 佐賀山基,山崎裕一,草野圭弘,十倉好紀,石渡晋太郎
    • Organizer
      第58回高圧討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Giant pressure effect on a cubic perovskite Sr1-xBaxCoO3 with competing magnetic orders2017

    • Author(s)
      H. Sakai, S. Yokoyama, A. Kuwabara, A. Miyake, M. Tokunaga, J. S. White, H. M. Ronnow, Y. Tokura and S. Ishiwata
    • Organizer
      山田科学振興財団 金森順次郎記念国際シンポジウム ー磁性研究の新たな地平線ー
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Giant pressure effect on a cubic perovskite Sr1-xBaxCoO3 with competing magnetic orders2017

    • Author(s)
      H. Sakai, S. Yokoyama, A. Kuwabara, A. Miyake, M. Tokunaga, M. Ochi, R. Arita, J. S. White, H. M. Ronnow, Y. Tokura and S. Ishiwata
    • Organizer
      第6回豊田理研国際ワークショップ
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 石渡研究室

    • URL

      https://qm.mp.es.osaka-u.ac.jp/papers/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 石渡研究室 論文リスト

    • URL

      http://www.qpec.t.u-tokyo.ac.jp/ishiwata_lab/publication.html

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-12-27  

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