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Study on novel magnetic order and transport properties in pyrochlore iridium oxides

Research Project

Project/Area Number 15H03692
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionKyushu Institute of Technology

Principal Investigator

MATSUHIRA KAZUYUKI  九州工業大学, 大学院工学研究院, 教授 (40312342)

Co-Investigator(Kenkyū-buntansha) 富安 啓輔  株式会社日産アーク(マテリアル解析部、デバイス機能解析部), マテリアル解析部,デバイス機能解析部, 主任研究員 (20350481)
渡邊 功雄  国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 専任研究員 (40260195)
小野田 繁樹  国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (70455335)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2018: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Keywordsパイロクロア / イリジウム酸化物 / 中性子散乱 / ミュオンスピン緩和 / 第一原理電子状態計算 / 金属絶縁体転移 / パイロクロア酸化物 / 磁気構造解析法 / 偏極中性子散乱 / 第一原理計算 / 強相関電子系 / フラストレート系 / パイロクロア型酸化物 / 磁気秩序 / 中性子回折 / パイロクア型酸化物
Outline of Final Research Achievements

The metal-insulator transition of pyrochlore iridates was researched in conjunction with various measurement methods and a theoretical method based on first principles calculation.
The magnetic structure of pyrochlore iridates was clarified from polarized neutron diffraction and muon spin relaxation, which can microscopically measure the spin state of electrons. The first-principles calculations on the electronic state revealed that increasing the on-site Coulomb interaction U changes from paramagnetic semimetal to antiferromagnetic semimetal, from antiferromagnetic semimetal to antiferromagnetic insulator.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的な意義は,スピン軌道相互作用が大きい5d遷移金属酸化物であるイリジウム酸化物において,幾何学的なフラストレーションを示すパイロクロア型構造を有する物質の基底状態の磁気構造を実験的に解明することができたことである。また,第一原理電子状態計算からも,実験結果と対応するようにオンサイトクーロン相互作用Uにより基底状態が変化することを理論的に解明したことは,学術的に大きな成果と考えられる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (93 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (17 results) Journal Article (17 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 17 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (59 results) (of which Int'l Joint Research: 28 results,  Invited: 10 results)

  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

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

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Rutherford-Appleton Laboratory(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ANSTO(オーストラリア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Rutherford-Appleton Laboratory(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Paul Sherrer Institut (PSI)(スイス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Universiti Sains Malaysia(USM(マレーシア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Oak Ridge National Laboratory(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] ANSTO(オーストラリア)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Paul Sherrer Institut(スイス)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Rutherford- Appleton Laboratory(英国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] OakRidge National Laboratory(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Institut Neel(フランス)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Chinese Academy of Sciences(中国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Paul Sherrer Institut(スイス)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Rutherford-Appleton Laboratory(英国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Carrier doping effect of magnetic and transport properties on the geometrically frustrated iridate Ca5Ir3O122019

    • Author(s)
      Haneta Sho、Yasukuni Yuki、Oka Chiharu、Wakeshima Makoto、Hinatsu Yukio、Matsuhira Kazuyuki
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 476 Pages: 274-277

    • DOI

      10.1016/j.jmmm.2018.12.023

    • NAID

      120006940305

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First-Principles Design of the Spinel Iridate Ir2O4 for High-Temperature Quantum Spin Ice2019

    • Author(s)
      Onoda Shigeki、Ishii Fumiyuki
    • Journal Title

      Physical Review Letters

      Volume: 122 Issue: 6 Pages: 067201-067201

    • DOI

      10.1103/physrevlett.122.067201

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Properties of Hole-Doped Pyrochlore Iridate (Y1-x-yCuxCay)2Ir2O72019

    • Author(s)
      Julia Angel, Retno Asih, Hironori Nomura, Tomoya Taniguchi, Kazuyuki Matsuhira, Muhammad Redo Ramadhan, Irwan Ramli, Makoto Wakeshima, Yukio Hinatsu, Mohamed Ismail Mohamed-Ibrahim, Shukri Sulaiman and Isao Watanab
    • Journal Title

      Key Engineering Materials

      Volume: 印刷中

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A new mathematical approach to finding global solutions of the magnetic structure determination problem2018

    • Author(s)
      K. Tomiyasu, R. Oishi-Tomiyasu, M. Matsuda, and K. Matsuhira
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 16228-16228

    • DOI

      10.1038/s41598-018-34443-2

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quantum paramagnet near spin-state transition2018

    • Author(s)
      K. Tomiyasu, N. Ito, R. Okazaki, Y. Takahashi, M. Onodera, K. Iwasa, T. Nojima, T. Aoyama, K. Ohgushi, Y. Ishikawa, T. Kamiyama, S. Ohira-Kawamura, M. Kofu and S. Ishihara
    • Journal Title

      Advanced Quantum Technology

      Volume: 2018 Issue: 3 Pages: 1800057-1800057

    • DOI

      10.1002/qute.201800057

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetic Properties of One-Dimensional Quantum Spin System Rb2Cu2Mo3O12 Studied by Muon Spin Relaxation2018

    • Author(s)
      S. Ohira-Kawamura, K. Tomiyasu, A. Koda, D. P. Sari, R. Asih, S. Yoon, I. Watanabe, and K. Nakajima
    • Journal Title

      JPS Conf. Proc.

      Volume: 21 Pages: 11007-11007

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Excitonic dispersion of the intermediate spin state in LaCoO3 revealed by resonant inelastic x-ray scattering2018

    • Author(s)
      Ru-Pan Wang, Atsushi Hariki, Andrii Sotnikov, Federica Frati, Jun Okamoto, Hsiao-Yu Huang, Amol Singh, Di-Jing Huang, Keisuke Tomiyasu, Chao-Hung Du, Jan Kune?, and Frank M. F. de Groot
    • Journal Title

      Phys. Rev. B

      Volume: 98 Issue: 3 Pages: 35149-35149

    • DOI

      10.1103/physrevb.98.035149

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chiral-crystal-structure transformations and magnetic states of R3Rh4Sn13 (R=La and Ce)2018

    • Author(s)
      Kazuya Suyama, Kazuaki Iwasa, Yuka Otomo, Keisuke Tomiyasu, Hajime Sagayama, Ryoko Sagayama, Hironori Nakao, Reiji Kumai, Yoshinori Kitajima, Fran?oise Damay, Jean-Michel Mignot, Akira Yamada, Tatsuma D. Matsuda, and Yuji Aoki
    • Journal Title

      Phys. Rev. B

      Volume: 97 Issue: 23 Pages: 231538-231538

    • DOI

      10.1103/physrevb.97.235138

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nonlinear Conductivity of Geometrically Frustrated Iridate Ca5Ir3O122018

    • Author(s)
      Matsuhira Kazuyuki、Nakamura Kazuma、Yasukuni Yuki、Yoshimoto Yoshihide、Hirai Daigorou、Hiroi Zenji
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 87 Issue: 1 Pages: 013703-013703

    • DOI

      10.7566/jpsj.87.013703

    • NAID

      210000134653

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain: Fedotovite K2Cu3O(SO4)32018

    • Author(s)
      Fujihala M.、Sugimoto T.、Tohyama T.、Mitsuda S.、Mole R.?A.、Yu D.?H.、Yano S.、Inagaki Y.、Morodomi H.、Kawae T.、Sagayama H.、Kumai R.、Murakami Y.、Tomiyasu K.、Matsuo A.、Kindo K.
    • Journal Title

      Physical Review Letters

      Volume: 120 Issue: 7 Pages: 77201-77201

    • DOI

      10.1103/physrevlett.120.077201

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetic moments and ordered states in pyrochlore iridates Nd2Ir2O7 and Sm2Ir2O7 studied by muon-spin relaxation2017

    • Author(s)
      R. Asih, N. Adam, S. S. M. Tajudin, D. P. Sarid, K. Matsuhira, H. Guo, M. Wakeshima, Y. Hinatsu, T. Nakano, Y. Nozue, S. Sulaiman, M. I. M. Ibrahim, P. K. Biswas, I. Watanabe
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 86 Issue: 2 Pages: 0247051-7

    • DOI

      10.7566/jpsj.86.024705

    • NAID

      210000134266

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Possible Tomonaga-Luttinger spin liquid state in the spin-1/2 inequilateral diamond-chain compound K3Cu3AlO2(SO4)42017

    • Author(s)
      M. Fujihala, H. Koorikawa, S. Mitsuda, K. Morita, T. Tohyama, K. Tomiyasu, A. Koda, H. Okabe, S. Itoh, T. Yokoo, S. Ibuka, M. Tadokoro, M. Itoh, H. Sagayama, R. Kumai, and Y. Murakami
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1

    • DOI

      10.1038/s41598-017-16935-9

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coulomb Correlations Intertwined with Spin and Orbital Excitations in LaCoO32017

    • Author(s)
      K. Tomiyasu, J. Okamoto, H. Y. Huang, Z. Y. Chen, E. P. Sinaga, W. B. Wu, Y. Y. Chu, A. Singh, R.-P. Wang, F. M. F. de Groot, A. Chainani, S. Ishihara, C. T. Chen, and D. J. Huang
    • Journal Title

      Phys. Rev. Lett.

      Volume: 119 Issue: 19

    • DOI

      10.1103/physrevlett.119.196402

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetic Properties of Electron-Doped LaCoO32017

    • Author(s)
      Tomiyasu Keisuke、Sato Mika、Koyama Shun-Ichi、Nojima Tsutomu、Kajimoto Ryoichi、Ji Sungdae、Iwasa Kazuaki
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 86 Issue: 9 Pages: 094706-094706

    • DOI

      10.7566/jpsj.86.094706

    • NAID

      210000134508

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystal-electric-field excitations and spin dynamics in Ce3Co4Sn13 semimetallic chiral-lattice phase2017

    • Author(s)
      Iwasa Kazuaki、Otomo Yuka、Suyama Kazuya、Tomiyasu Keisuke、Ohira-Kawamura Seiko、Nakajima Kenji、Mignot Jean-Michel
    • Journal Title

      Physical Review B

      Volume: 95 Issue: 19

    • DOI

      10.1103/physrevb.95.195156

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Microscopic Examinations of Co Valences and Spin States in Electron-Doped LaCoO32016

    • Author(s)
      Keisuke Tomiyasu, Syun-Ichi Koyama, Masanori Watahiki, Mika Sato, Kazuki Nishihara, Yuki Takahashi, Mitsugi Onodera, Kazuaki Iwasa, Tsutomu Nojima, Hiroyuki Nojiri, Jun Okamoto, Di-Jing Huang, Yuuichi Yamasaki, Hironori Nakao, and Youichi Murakami
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 85 Issue: 9 Pages: 094702-094702

    • DOI

      10.7566/jpsj.85.094702

    • NAID

      210000134085

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First-principles study on cubic pyrochlore iridates Y2Ir2O7 and Pr2Ir2O72015

    • Author(s)
      F. Ishii, Y.P. Mizuta, T. Kato, T. Ozaki, H. Weng, and S. Onoda
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 84 Issue: 7 Pages: 073703-073703

    • DOI

      10.7566/jpsj.84.073703

    • NAID

      210000133609

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Novel Transport and Magnetic Properties of Geometrically Frustrated Iridate Ca5Ir3O122019

    • Author(s)
      Kazuyuki Matsuhira, Hiroki Hanate, Kazuma Nakamura, Yoshihide Yoshimoto, Daigoro Hirai, Zenji Hiroi
    • Organizer
      International Workshop on Topological Quantum Materials, NCKU, Tainan, Taiwan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] μSR Study on Magnetic Orderings in (Eu,Ca)2Ir2O72019

    • Author(s)
      Utami Widyaiswari, Julia Angel, Hironori Nomura, Tomoya Taniguchi, Kazuyuki Matsuhira, Isao Watanabe
    • Organizer
      第74回日本物理学会年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] μSR Study on Magnetic Ordering in (Eu,Ca)2Ir2O72019

    • Author(s)
      U. Widyaiswari, J. Angel, H. Nomura, T. Taniguchi, K. Matsuhira, B. Kurniawan, I. Watanabe
    • Organizer
      International Workshop on Topological Quantum Materials, NCKU, Tainan, Taiwan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Properties of Hole-doped Pyrochlore Iridate Y2-x-yCuyCaxIr2O72019

    • Author(s)
      J. Angel, H. Nomura, T. Taniguchi, K. Matsuhira,M. Wakeshima, Y. Hinatsu, I. Watanabe
    • Organizer
      International Workshop on Topological Quantum Materials, NCKU, Tainan, Taiwan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 幾何学的フラストレート系イリジウム酸化物の磁性と輸送特性2018

    • Author(s)
      松平和之, Retno Asih, 渡邊功雄,花手洋樹,平井大悟郎,廣井善二
    • Organizer
      第28回日本MRS年次大会 シンポジウム「特異なスピン構造から創発する物質の新しい性質と機能性」(招待講演)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Strongly correlated metallic state in doped pyrochlore iridates Y2Ir2O72018

    • Author(s)
      Kazuyuki Matsuhira, Tomoya Taniguchi, Hironori Nomura, Reo Shibahara, Julia Angel, R. Asia, Isao Watanabe
    • Organizer
      International Conference on Highly Frustrated Magnetism 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nonlinear conductivity of frustrated iridate Ca5Ir3O122018

    • Author(s)
      Kazuyuki Matsuhira, Kazuma Nakamura, Yuki Yasukuni, Yoshihide Yoshimoto, Daigoro Hirai, Zenji Hiroi
    • Organizer
      International Conference on Highly Frustrated Magnetism 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Carrier doping effect of magnetic and transport properties on the geometrically frustrated iridate Ca5Ir3O12018

    • Author(s)
      Haneta Sho、Yasukuni Yuki、Oka Chiharu、Wakeshima Makoto、Hinatsu Yukio, Kazuyuki Matsuhira
    • Organizer
      9th Joint European Magnetic Symposia Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-Fermi liquid behavior realized in doped pyrochlore Y2Ir2O72018

    • Author(s)
      Tomoya Taniguchi, Hironori Nomura, Julia Angel, Retno Asih, Isao Watanabe, Kazuyuki Matsuhira
    • Organizer
      9th Joint European Magnetic Symposia Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-Fermi liquid behavior in doped pyrochlore iridate Y2Ir2O72018

    • Author(s)
      野村拡功,谷口智哉, Julia Angel, Retno Asih, 渡邊功雄, 松平和之
    • Organizer
      第28回日本MRS年次大会 シンポジウム「特異なスピン構造から創発する物質の新しい性質と機能性」
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超高分解能粉末中性子回折によるスピネルFeCr2O4の磁気構造研究2018

    • Author(s)
      富安啓輔, 石橋広記, Sanghyun Lee, 萩原雅人, 鳥居周輝, 神山崇
    • Organizer
      日本物理学会2018年秋季大会, 同志社大(京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] 中性子非弾性散乱と理論計算の融合によるLaCoO3の研究2018

    • Author(s)
      富安啓輔, 野村拓司, 小林義彦, 古府麻衣子, 河村聖子
    • Organizer
      日本物理学会2018年秋季大会, 同志社大(京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] コバルト酸化物LaCoO3とLa(Co0.99Ni0.01)O3の弾性異常2018

    • Author(s)
      岡田竜一, 渡辺忠孝, 富安啓輔
    • Organizer
      日本物理学会2018年秋季大会, 同志社大(京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Magnetically Ordered States in Holed-doped Pyrochlore Iridate (Y0.95-xCu0.05Cax)2Ir2O72018

    • Author(s)
      J. Angel, H. Nomura, T. Taniguchi, K. Matsuhira,, I. Watanabe
    • Organizer
      日本物理学会2018年秋季大会, 同志社大(京田辺キャンパス)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Magnetic Properties of Hole-doped Pyrochlore Iridate (Y1-x-yCuxCay)2Ir2O72018

    • Author(s)
      J. Angel, R. Asih, H. Nomura, T. Taniguchi, K. Matsuhira, M. Redo Ramadhan, Irwan Ramli, M. Wakeshima, Y. Hinatsu, M. Ismail Mohamed-Ibrahim, S. Sulaiman, I. Watanabe
    • Organizer
      4th International Conference for Functional Materials Science 2018, Sanur, Bali, Indonesia
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 幾何学的フラストレート系イリジウム酸化物Ca5Ir3O12の非線形伝導2018

    • Author(s)
      松平和之,吉田航,安國友貴,中村和磨,吉本芳英,平井大悟郎,廣井善二
    • Organizer
      日本物理学会第73回年次大会 東京理科大学野田キャンパス,野田
    • Related Report
      2017 Annual Research Report
  • [Presentation] Magnetic ordered states of hole doped pyrochlore iridates (Nd1-xCax)2Ir2O7 studied by μSR2017

    • Author(s)
      R. Asih, J. Angel, S. Maeda, D. P. Sari, F. Astuti, K. Matsuhira, M. Wakeshima, Y. Hinatsu, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学(豊中市)
    • Year and Date
      2017-03-18
    • Related Report
      2016 Annual Research Report
  • [Presentation] The Magnetically Ordered States in Hole-Doped Pyrochlore Iridate Y2Ir2O72017

    • Author(s)
      J. Angel, R. Asih, R. Shibahara, K. Matsuhira, T. Sakakibara, I. Watanabe
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学(豊中市)
    • Year and Date
      2017-03-18
    • Related Report
      2016 Annual Research Report
  • [Presentation] First-principles design of spinel iridate Ir2O4 for high-temperature quantum spin ice2017

    • Author(s)
      Shigeki Onoda, Fumiyuki Ishii
    • Organizer
      American Physical Society March Meeting 2017
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] μSR study on magnetic ordered states of pyrochlore iridates Nd2Ir2O7 and Sm2Ir2O72017

    • Author(s)
      R. Asih, S. S. Mohd-Tajudin, F. Astuti, S. Maeda, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      The 37th REIMEI Workshop on Frontiers of Correlated Quantum Matters and Spintronics The DMREF-FCMP Symposium on Mott Transitions and Computational Approaches
    • Place of Presentation
      Conference Hall at Advanced Science Research Center JPARC, iVil Hall- Tokai, and Takeda Hall in Univ. of Tokyo
    • Year and Date
      2017-01-13
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Metal-insulator Transition and magnetic Properties of the Pyrochlore Iridates Ln2Ir2O72017

    • Author(s)
      松平和之
    • Organizer
      School Seminar in International Workshop on Organic Molecule Systems,Universiti Sains Malaysia (USM), Penang, Malaysia
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 幾何学的フラストレート系イリジウム酸化物Ca5Ir3O12の磁性と電気伝導2017

    • Author(s)
      松平和之,安國友貴,中村和磨,吉本芳英,平井大悟郎,廣井善二
    • Organizer
      日本物理学会2017年秋季大会 岩手大学,盛岡
    • Related Report
      2017 Annual Research Report
  • [Presentation] パイロクロア型イリジウム酸化物Y2Ir2O7のホールドープ効果2017

    • Author(s)
      谷口智哉,野村拡功,柴原怜央,松平和之
    • Organizer
      第123回日本物理学会九州支部例会,鹿児島大学
    • Related Report
      2017 Annual Research Report
  • [Presentation] Magnetic ordered states of hole doped pyrochlore iridates (Nd1-xCax)2Ir2O7 studied by μSR2017

    • Author(s)
      R. Asih, S. Maeda, D. P. Sari, J. Angel, F. Astuti, K. Matsuhira, M. Wakeshima, Y. Hinatsu, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      nternational Workshop on Organic Molecular Systems,Penang, Malaysia
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetically Ordered States in Hole-Doped Pyrochlore Iridate (Y1-x-yCuxCay)2Ir2O72017

    • Author(s)
      J. Angel, R. Asih, R. Shibahara, K. Matsuhira, I. Watanabe, T. Sakakibara
    • Organizer
      nternational Workshop on Organic Molecular Systems,Penang, Malaysia
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic ordered states of hole-doped pyrochlore (Nd1-xCax)2Ir2O7 studied by μSR2017

    • Author(s)
      R. Asih, J. Angel, S. Maeda, D. P. Sari, F. Astuti, K. Matsuhira, M. Wakeshima, Y. Hinatsu, I. Watanabe, T. Nakano and Y. Nozue
    • Organizer
      The 3rd Emallia Conference, 釜山、韓国
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetically Ordered States in Hole-Doped Pyrochlore Iridate Y2Ir2O72017

    • Author(s)
      Julia Angel, Retno Asih, K. Matsuhira and Isao Watanabe
    • Organizer
      The 3rd Emallia Conference, 釜山、韓国
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quest to U(1) quantum spin liquids, valence bond solids, and novel ordered phases in pyrochlores and spinels: unconventional quasiparticles and interference effects2017

    • Author(s)
      Shigeki Onoda
    • Organizer
      Junjiro Kanamori Memorial International Symposium, Univ. of Tokyo, Tokyo
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quest to U(1) quantum spin liquids, valence bond solids, novel ordered phases in pyrochlores and spinels: unconventional quasiparticles and interference effects2017

    • Author(s)
      Shigeki Onoda
    • Organizer
      Kavli Institute for Theoretical Sciences, Univ. of Chinese Academy of Sciences
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] "Quantum spin ice" Part I,II, and III2017

    • Author(s)
      Shigeki Onoda
    • Organizer
      Frustrated Magnetism: School,Institute of Mathematical Sciences (IMSc), Chennai, India
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sc置換LaCoO3における磁化と体積磁歪 スピン状態転移近傍に現れる励起子絶縁体の候補物質としての検討2017

    • Author(s)
      富安啓輔, 伊藤菜緒子, 岡崎竜二, 高橋佑生, 岩佐和晃, 野島勉, 青山拓也, 石原純夫, 大串研也
    • Organizer
      日本物理学会2017年秋季大会, 岩手大上田キャンパス
    • Related Report
      2017 Annual Research Report
  • [Presentation] LaCo1-yScyO3の輸送現象と電荷励起ギャップ2017

    • Author(s)
      伊藤菜緒子, 岡崎竜二, 高橋佑生, 富安啓輔
    • Organizer
      日本物理学会2017年秋季大会, 岩手大上田キャンパス
    • Related Report
      2017 Annual Research Report
  • [Presentation] 元素置換したLuCoO3の磁性と電気伝導2017

    • Author(s)
      長内一将, 富安啓輔, 大串研也
    • Organizer
      日本物理学会2017年秋季大会, 岩手大上田キャンパス
    • Related Report
      2017 Annual Research Report
  • [Presentation] 超高分解能粉末中性子回折によるスピネルCuCr2O4の磁気構造2017

    • Author(s)
      富安啓輔, Sanghyun Lee, 石橋広記, 高橋佑生, 鳥居周輝, 神山崇
    • Organizer
      日本物理学会2017年秋季大会, 岩手大上田キャンパス
    • Related Report
      2017 Annual Research Report
  • [Presentation] ペロブスカイト型酸化物LaCoO3とLa(Co1-xNix)O3の弾性異常2017

    • Author(s)
      岡田竜一, 渡辺忠孝, 富安啓輔
    • Organizer
      日本物理学会2017年秋季大会, 岩手大上田キャンパス
    • Related Report
      2017 Annual Research Report
  • [Presentation] フラストレートスピン1/2ラダーRb2Cu2Mo3O12に現れるスピン1ハルデンギャップと強誘電性2017

    • Author(s)
      上田宏, 小野田繁樹, 山口泰弘, 木村剛, 吉澤大智, 森岡俊晶, 萩原政幸, 萩原雅人, 左右田稔, 益田隆嗣, 榊原俊郎, 富安啓輔, 河村聖子, 中島健次, 梶本亮一, 中村充孝, 稲村泰弘, 長谷正司, 安井幸夫
    • Organizer
      日本物理学会第73回年次大会, 東京理科大(野田キャンパス)
    • Related Report
      2017 Annual Research Report
  • [Presentation] LaCoO3の単結晶非弾性中性子散乱研究2017

    • Author(s)
      富安啓輔, 小林義彦, 古府麻衣子, 川村聖子, 石原純夫
    • Organizer
      日本物理学会第73回年次大会, 東京理科大(野田キャンパス)
    • Related Report
      2017 Annual Research Report
  • [Presentation] Investigation of magnetic ordered states in the pyrochlore iridates (Nd1-xCax)2Ir2O72016

    • Author(s)
      R. Asih, N. Adam, S. S. Mohd-Tajudin, S. Maeda, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      Emallia Conference
    • Place of Presentation
      Graduate School of Science, Hokkaido University, Sapporo
    • Year and Date
      2016-12-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] キャリアドープによるパイロクロア型イリジウム酸化物の量子臨界現象の研究2016

    • Author(s)
      柴原怜央,山本祥子, 前田賢, 分島亮,日夏幸雄, 三宅厚志,徳永将史,松平和之
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学(金沢市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] パイロクロア酸化物Ln2Ir2O7における金属絶縁体転移2016

    • Author(s)
      松平和之
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学(金沢市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] μSR study on the magnetic ordered states of (Nd1-xCax)2Ir2O72016

    • Author(s)
      R. Asih, S. S. Mohd-Tajudin, F. Astuti, S. Maeda, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学(金沢市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Study on Quantum Critical Phenomena in the Doped Pyrochlore Iridates2016

    • Author(s)
      R. Shibahara, S. Yamamoto, S. Maeda , M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, K. Matsuhira
    • Organizer
      The 8th International Conference on Highly Frustrated Magnetism (HFM 2016)
    • Place of Presentation
      NTU Convention Center, Taipei, Taiwan
    • Year and Date
      2016-09-08
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic ordered states in pyrochlore iridates Nd2Ir2O7 and Sm2Ir2O7 studied by μSR2016

    • Author(s)
      R. Asih, N. Adam, S.S. Mohd-Tajudin, D.P. Sari, K. Matsuhira, H. Guo, M. Wakeshima, Y. Hinatsu, T. Nakano, Y. Nozue, S. Sulaiman, M.I. Mohamed-Ibrahim, P.B. Kumar, and I. Watanabe
    • Organizer
      The 8th International Conference on Highly Frustrated Magnetism (HFM 2016)
    • Place of Presentation
      NTU Convention Center, Taipei, Taiwan
    • Year and Date
      2016-09-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First-principles design for high-temperature quantum spin ice in Ir2O42016

    • Author(s)
      Shigeki Onoda, Fumiyuki Ishii
    • Organizer
      The 8th International Conference on Highly Frustrated Magnetism (HFM 2016)
    • Place of Presentation
      NTU Convention Center, Taipei, Taiwan
    • Year and Date
      2016-09-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic ordered states in pyrochlore iridates R2Ir2O7 (R = Nd and Sm) investigated by μSR2016

    • Author(s)
      R. Asih, N. Adam, S.S. Mohd-Tajudin, D.P. Sari, K. Matsuhira, H. Guo, M. Wakeshima, Y. Hinatsu, T. Nakano, Y. Nozue, S. Sulaiman, M.I. Mohamed-Ibrahim, P.B. Kumar, and I. Watanabe
    • Organizer
      Rare Earth Conferences 2016
    • Place of Presentation
      Conference Hall, Hokkaido University
    • Year and Date
      2016-06-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of magnetic ordered states in the (Nd1-xCax)2Ir2O7 probed by μSR2016

    • Author(s)
      R. Asih, N. Adam, S. S. Mohd-Tajudin, S. Maeda, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      Hokkaido University-RIKEN symposium
    • Place of Presentation
      Graduate School of Science, Hokkaido University, Sapporo
    • Year and Date
      2016-05-25
    • Related Report
      2016 Annual Research Report
  • [Presentation] Effect of Ca-substitution on the magnetic ordered state of (Na1-xCax)2Ir2O7 studied by μSR2016

    • Author(s)
      R. Asih, S. S. Mohd-Tajudin, S. Maeda, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, and Y. Nozue
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学(仙台市)
    • Year and Date
      2016-03-21
    • Related Report
      2015 Annual Research Report
  • [Presentation] Quantum spin ice: current issues and beyond2016

    • Author(s)
      Shigeki Onoda
    • Organizer
      2016 Quantum Materials Symposium
    • Place of Presentation
      Muui Island Homeplus Academy, Korea
    • Year and Date
      2016-02-22
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic Properties and Carrier Doping Effect in Pyrochlore Iridates Ln2Ir2O72016

    • Author(s)
      K. Matsuhira, S. Maeda, S. Yamamoto, R. Shibahara, A. Miyake, M. Tokunaga, M. Wakeshima, Y. Hinatsu
    • Organizer
      Frontier of the Muon Science Applications
    • Place of Presentation
      理化学研究所(和光市)
    • Year and Date
      2016-02-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] μSR Study on the Pyrochlore Iridates R2Ir2O7 (R= Nd,Sm)2015

    • Author(s)
      R. Asih, N. Adam, S. S. Mohd-Tajudin, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, Y. Nozue
    • Organizer
      International Symposium on Present and Future of Material Sciences
    • Place of Presentation
      大阪大学(豊中市)
    • Year and Date
      2015-11-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] μSR Study on the Pyrochlore Iridates R2Ir2O7 (R= Nd,Sm)2015

    • Author(s)
      R. Asih, N. Adam, S. S. Mohd-Tajudin, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, Y. Nozue
    • Organizer
      東大物性研短期研究会「スピン系物理の深化と最前線」
    • Place of Presentation
      東京大学物性研(千葉県柏市)
    • Year and Date
      2015-11-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] μSRで磁性体中の微小スピンを見る2015

    • Author(s)
      渡邊功雄
    • Organizer
      原研先端基礎研究センター・基礎科学セミナー
    • Place of Presentation
      原研先端基礎研究センター(茨城県東海村)
    • Year and Date
      2015-10-29
    • Related Report
      2015 Annual Research Report
  • [Presentation] Theory for electronic properties of oxide pyrochlores: quantum spin ice and iridates2015

    • Author(s)
      Shigeki Onoda
    • Organizer
      TMU International Symposium on “New Quantum Phases Emerging from Novel Crystal Structure”
    • Place of Presentation
      首都大学東京(八王子市)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] パイロクロア型Ir酸化物における磁気秩序と電子状態の第一原理計算2015

    • Author(s)
      石井史之,水田耀ピエール, 加藤毅大, 尾崎泰助, Hongming Weng, 小野田繁樹
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学(吹田市)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Annual Research Report
  • [Presentation] Investigation of Magnetic Ordered State in the Pyrochlore Iridates R2Ir2O7 (R= Nd,Sm) probed by μSR2015

    • Author(s)
      R. Asih, N. Adam, S. S. Mohd-Tajudin, K. Matsuhira, M. Wakeshima, Y. Hinatsu, A. Miyake, M. Tokunaga, I. Watanabe, T. Nakano, Y. Nozue
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学(吹田市)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Annual Research Report
  • [Presentation] パイロクロア型イリジウム酸化物 Y2Ir2O7 における Ca 置換効果2015

    • Author(s)
      山本祥子,前田賢,於久晃大,分島亮,日夏幸雄, 三宅厚志,徳永将史,松平和之
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学(吹田市)
    • Year and Date
      2015-09-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] キャリアドープによるパイロクロア型イリジウム酸化物Nd2Ir2O7の量子臨界性の研究2015

    • Author(s)
      前田賢,後藤岳,坂本健,分島亮,日夏幸雄,三宅厚志,徳永将史,松平和之
    • Organizer
      日本物理学会2015年秋季大会
    • Place of Presentation
      関西大学(吹田市)
    • Year and Date
      2015-09-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] Thermal, transport, and spectral properties of generic quantum spin ice beyond the mean-field theory2015

    • Author(s)
      Shigeki Onoda
    • Organizer
      The 20th International Conference on Magnetism (ICM2015)
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-07-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] μSR Studies of Spin Ground States in the Pyrochlore Iridate Nd2Ir2O72015

    • Author(s)
      渡邊功雄、Hanjie Guo、松平和之、川崎郁斗、分島 亮、日夏 幸雄、Zhu-an Xu
    • Organizer
      4th Annual World Congress of Advanced Materials-2015 (WCAM2015)
    • Place of Presentation
      重慶市,中国
    • Year and Date
      2015-05-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2020-05-15  

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