Studies of a spin liquid state and a topological order in quantum kagome antiferromagnets

• Project/Area Number: 18K03529
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
• Research Institution: Hokkaido University
• Principal Investigator: Yoshida Hiroyuki 北海道大学, 理学研究院, 准教授 (30566758)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 幾何学的フラストレーション / 量子スピン液体 / カゴメ反強磁性体 / スピン液体 / フラストレーション

Outline of Final Research Achievements

In this study, we have investigated the physical properties of the quantum kagome antiferromagnet CaCu3(OH)6Cl2・0.6H2O single crystal by means of high field magnetization, magnetic torque, thermal Hall effect, NMR and neutron scattering experiments in order to elucidate a quantum spin liquid state and its topological property. As a result, it was experimentally established that the ground state of this material is the long-range magnetic order with q = 0 (negative chirality), while the short-range order related to spin liquid develops at high temperatures above the transition temperature. The strong quantum fluctuation and frustration in the quantum kagome antiferromagnet are found to be deeply related to the formation of the peculiar magnetic state.

Academic Significance and Societal Importance of the Research Achievements

量子スピン液体は、高温超伝導やトポロジカル秩序との関係、量子コンピューティングへの応用の可能性などが指摘されており、古くから注目を集めてきた。従って、スピン液体を実験的に実現し、その性質を解明することは基礎のみならず応用上の観点からも重要な課題である。本研究ではCaCu3(OH)6Cl2・0.6H2Oを対象とし、スピン液体実現の可能性を探った。結果として、基底状態はスピン液体ではなかったものの、磁気秩序の近傍にスピン液体との関連が期待される短距離秩序状態が実現することを見出した。本研究の知見を基に更なる物質探索や物性評価を進めることで、スピン液体を実現する物質の開発に繋がると期待される。

Research Products

• [Journal Article] Magnetic Properties of S = 1/2 Distorted Kagome Antiferromagnet CdCu3(OH)6Cl2 with Low-Symmetry Orbital Arrangement (2021)
  • Author(s): Yoshida Hiroyuki K.、Noguchi Naoya、Ishii Yuto、Oda Migaku、Chen Jie、Yamaura Kazunari、Yamashita Satoshi、Nakazawa Yasuhiro、Kida Takanori、Narumi Yasuo、Hagiwara Masayuki
  • Journal Title: Journal of the Physical Society of Japan Volume: 90 Issue: 4 Pages: 044714-044714
  • DOI: 10.7566/jpsj.90.044714
  • NAID: 40022540074
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Field-induced successive phase transitions in the J1?J2 buckled honeycomb antiferromagnet Cs3Fe2Cl9 (2021)
  • Author(s): Ishii Y.、Narumi Y.、Matsushita Y.、Oda M.、Kida T.、Hagiwara M.、Yoshida H. K.
  • Journal Title: Physical Review B Volume: 103 Issue: 10 Pages: 104433-104433
  • DOI: 10.1103/physrevb.103.104433
  • Peer Reviewed
• [Journal Article] Emergence of Frustrated Short-Range Order above Long-Range Order in the S = 1/2 Kagome Antiferromagnet CaCu3(OD)6Cl2?0.6D2O (2021)
  • Author(s): Ihara Yoshihiko、Matsui Kazuki、Kohama Yoshimitsu、Luther Sven、Opherden Daryna、Wosnitza Jochen、K?hne Hannes、Yoshida Hiroyuki K.
  • Journal Title: Journal of the Physical Society of Japan Volume: 90 Issue: 2 Pages: 023703-023703
  • DOI: 10.7566/jpsj.90.023703
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Coexistence of checkerboard and quasiparticle interference modulations in Bi2Sr2CaCu2O8+x studied by scanning tunneling microscopy/spectroscopy (2020)
  • Author(s): Mizuta Shusei, Oda Migaku, Momono Naoki, Yoshida Hiroyuki K., Ido Masayuki
  • Journal Title: Physical Review B Volume: 102 Issue: 18
  • DOI: 10.1103/physrevb.102.184513
  • Peer Reviewed
• [Journal Article] Magnetic excitations affected by spin-lattice coupling in the S=32 triangular lattice antiferromagnet Ag2CrO2 (2020)
  • Author(s): Matsuda Masaaki、Dissanayake Sachith E.、Yoshida Hiroyuki K.、Isobe Masaaki、Stone Matthew B.
  • Journal Title: Physical Review B Volume: 102 Issue: 21
  • DOI: 10.1103/physrevb.102.214411
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Partially disordered state with short-range spin correlation in S=5/2 classical triangular antiferromagnet Ag2FeO2 (2020)
  • Author(s): Yoshida H. K.、Matsuda M.、Stone M. B.、dela Cruz C. R.、Furubayashi T.、Onoda M.、Takayama-Muromachi E.、Isobe M.
  • Journal Title: Physical Review Research Volume: 2 Issue: 4
  • DOI: 10.1103/physrevresearch.2.043211
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Static and dynamic spin properties in the quantum triangular lattice antiferromagnet Ag2CoO2 (2020)
  • Author(s): Yoshida H. K.、Dissanayake S. E.、Christianson A. D.、dela Cruz C. R.、Cheng Y.-Q.、Okamoto S.、Yamaura K.、Isobe M.、Matsuda M.
  • Journal Title: Physical Review B Volume: 102 Issue: 2 Pages: 024445-024445
  • DOI: 10.1103/physrevb.102.024445
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-pressure synthesis, crystal structure, and magnetic properties of the Shastry-Sutherland-lattice oxides BaLn2ZnO5 (Ln = Pr, Sm, Eu) (2020)
  • Author(s): Ishii Yuto, Chen Jie, Yoshida Hiroyuki K., Oda Migaku, Christianson Andrew D., Yamaura Kazunari
  • Journal Title: Journal of Solid State Chemistry Volume: 289 Pages: 121489-121489
  • DOI: 10.1016/j.jssc.2020.121489
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] q=0 long-range magnetic order in centennialite CaCu3(OD)6Cl2・0.6D2O: A spin-1/2 perfect kagome antiferromagnet with J1-J2-Jd; (2020)
  • Author(s): K. Iida, H. K. Yoshida, A. Nakao, H. O. Jeschke, Y. Iqbal, K. Nakajima, S. Ohira-Kawamura, K. Munakata, Y. Inamura, N. Murai, M. Ishikado, R. Kumai, T. Okada, M. Oda, K. Kakurai, and M. Matsuda
  • Journal Title: Phys. Rev. B Volume: 101 Issue: 22 Pages: 220408-220408
  • DOI: 10.1103/physrevb.101.220408
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Anisotropic magnetic excitations from single-chirality antiferromagnetic state in Ca-kapellasite (2020)
  • Author(s): Ihara Y.、Yoshida H.、Arashima K.、Hirata M.、Sasaki T.
  • Journal Title: Physical Review Research Volume: 2 Issue: 2
  • DOI: 10.1103/physrevresearch.2.023269
  • Peer Reviewed / Open Access
• [Journal Article] Anisotropic magnetic excitations from single-chirality antiferromagnetic state in Ca-kapellasite (2020)
  • Author(s): Y. Ihara, H. Yoshida, K. Arashima, M. Hirata, and T. Sasaki
  • Journal Title: Physical Review Research Volume: -
  • Peer Reviewed / Open Access
• [Journal Article] Butterfly-shaped magnetoresistance in triangular-lattice antiferromagnet Ag2CrO2 (2020)
  • Author(s): H. Taniguchi, M. Watanabe, M. Tokuda, S. Suzuki, E. Imada, T. Ibe, T. Arakawa, H. Yoshida, H. Ishizuka, K. Kobayashi and Y. Niimi
  • Journal Title: Scientific Reports Volume: 10 Issue: 1 Pages: 2525-2525
  • DOI: 10.1038/s41598-020-59578-z
  • Peer Reviewed / Open Access
• [Journal Article] Thermal-transport studies of kagome antiferromagnets (2020)
  • Author(s): M. Yamashita, M. Akazawa, M. Shimozawa, T. Shibauchi, Y. Matsuda, H. Ishikawa, T. Yajima, Z. Hiroi, M. Oda, H. Yoshida, H.-Y. Lee, J. H. Han and N. Kawashima
  • Journal Title: Journal of Physics: Condensed Matter Volume: 32 Issue: 7 Pages: 074001-074001
  • DOI: 10.1088/1361-648x/ab50e9
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Smectic Liquid-Crystalline Structure of Skyrmions in Chiral Magnet Co8.5Zn7.5Mn4 (110) Thin Film (2019)
  • Author(s): T. Nagase, M. Komatsu, Y. G. So, T. Ishida, H. Yoshida, Y. Kawaguchi, Y. Tanaka, K. Saitoh, N. Ikarashi, M. Kuwahara, and M. Nagao
  • Journal Title: Physical Review Letters Volume: 123 Issue: 13 Pages: 137203-137203
  • DOI: 10.1103/physrevlett.123.137203
  • Peer Reviewed / Open Access
• [Journal Article] Orbital Transitions and Frustrated Magnetism in the Kagome-Type Copper Mineral Volborthite (2019)
  • Author(s): Z. Hiroi, H. Ishikawa, H. Yoshida, J. Yamaura, Y. Okamoto
  • Journal Title: Inorganic Chemistry Volume: 58 Issue: 18 Pages: 11949-11960
  • DOI: 10.1021/acs.inorgchem.9b01165
  • Peer Reviewed
• [Journal Article] Coexisting spin resonance and long-range magnetic order of Eu in EuRbFe4As4 (2019)
  • Author(s): K. Iida, Y. Nagai, S. Ishida, M. Ishikado, N. Murai, A. D. Christianson, H. Yoshida, Y. Inamura, H. Nakamura, A. Nakao, K. Munakata, D. Kagerbauer, M. Eisterer, K. Kawashima, Y. Yoshida, H. Eisaki, and A. Iyo
  • Journal Title: Physical Review B Volume: 100 Issue: 1 Pages: 014506-014506
  • DOI: 10.1103/physrevb.100.014506
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Quantum magnetisms in uniform triangular lattices Li2AMo3O8 (A=In, Sc) (2019)
  • Author(s): Iida Kazuki、Yoshida Hiroyuki、Okabe Hirotaka、Katayama Naoyuki、Ishii Yuto、Koda Akihiro、Inamura Yasuhiro、Murai Naoki、Ishikado Motoyuki、Kadono Ryosuke、Kajimoto Ryoichi
  • Journal Title: Scientific Reports Volume: 9 Issue: 1 Pages: 1826-1826
  • DOI: 10.1038/s41598-018-36123-7
  • Peer Reviewed / Open Access
• [Journal Article] Spin Thermal Hall Conductivity of a Kagome Antiferromagnet (2018)
  • Author(s): Doki Hayato、Akazawa Masatoshi、Lee Hyun-Yong、Han Jung Hoon、Sugii Kaori、Shimozawa Masaaki、Kawashima Naoki、Oda Migaku、Yoshida Hiroyuki、Yamashita Minoru
  • Journal Title: Physical Review Letters Volume: 121 Issue: 9 Pages: 097203-097203
  • DOI: 10.1103/physrevlett.121.097203
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fabrication of thin films of two-dimensional triangular antiferromagnet Ag2CrO2 and their transport properties (2018)
  • Author(s): H. Taniguchi, S. Suzuki, T. Arakawa, H. Yoshida, Y. Niimi, K. Kobayashi
  • Journal Title: AIP Advances Volume: 8 Issue: 2 Pages: 025010-025010
  • DOI: 10.1063/1.5016428
  • Peer Reviewed / Open Access
• [Presentation] スピン1/2カゴメ反強磁性体CaCu3(OD)6Cl2・0.6D2Oにおけるq = 0 長距離磁気秩序 (2021)
  • Author(s): 飯田一樹, 吉田紘行, 中尾朗子, Harald O. Jeschke, Yasir Iqbal, 中島健次, 河村聖子, 宗像孝司, 稲村泰弘, 村井直樹, 石角元志, 熊井玲児, 岡田武久, 小田研, 加倉井和久, 松田雅昌
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] 2D-NMR測定によるCaCu3(OH)6・0.6H2Oの短距離相関状態の研究 (2021)
  • Author(s): 井原慶彦, 松井一樹, 小濱芳允, 吉田紘行
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] ブリージングカゴメ反強磁性体Li2Cr3SbO8の超強磁場磁歪 (2021)
  • Author(s): 石井裕人, 池田暁彦, 厳正輝, 小濱芳允, 吉田紘行, 松田康弘
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] f電子系ブリージングカゴメ反強磁性体Gd3Os4Al12の合成と物性 (2021)
  • Author(s): 林浩章, 吉田紘行, 小田研, 山浦一成, 松下能孝
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] 新規f電子系カゴメ反強磁性体の合成と物性 (2020)
  • Author(s): 林浩章, 山浦一成, 小田研, 吉田紘行
  • Organizer: 第61回高圧討論会
• [Presentation] 水熱法によるフラストレート磁性体の新物質探索と単結晶育成 (2020)
  • Author(s): 吉田紘行
  • Organizer: 日本物理学会2020年秋季大会
  • Invited
• [Presentation] カイラル磁性薄膜におけるドメインウォールスキルミオンの観測 (2020)
  • Author(s): 長瀬知輝, 肖英紀, 安井隼太, 石田高史, 吉田紘行, 田仲由喜夫, 齋藤晃, 五十嵐信行, 川口由紀, 桑原真人, 長尾全寛
  • Organizer: 日本物理学会2020年秋季大会
• [Presentation] S = 1/2三角キューポラ反強磁性体SrCu(OH)3Clの磁性 (2020)
  • Author(s): 藤井健太郎, 吉田紘行, 石井裕人, 小田研, Harald O. Jeschke, 下川統久朗, 木村健太, 木村剛, 鳴海康雄, 萩原政幸
  • Organizer: 日本物理学会2020年秋季大会
• [Presentation] フラストレート磁性体の新規物質開発と物性評価 (2020)
  • Author(s): 吉田紘行
  • Organizer: 日本物理学会第75回年次大会
  • Invited
• [Presentation] Application of hydrothermal technique to develop 3d transition metal compounds without local inversion symmetry (2019)
  • Author(s): Hiroyuki Yoshida
  • Organizer: J-Physics 2019 International Conference
  • Int'l Joint Research / Invited
• [Presentation] Synthesis and physical properties of Spin-1/2 SrCu(OH)3Cl without inversion symmetry (2019)
  • Author(s): Hiroyuki Yoshida
  • Organizer: International Conference on Strongly Correlated Electron Systems 2019
  • Int'l Joint Research
• [Presentation] Exploring of the new materials without time- and spatial-inversion symmetry (2019)
  • Author(s): 吉田紘行
  • Organizer: 第29回日本MRS年次大会
  • Invited
• [Presentation] S =1/2三角キューポラ化合物SrCu(OH)3Clの磁性 (2019)
  • Author(s): 吉田紘行
  • Organizer: スピン系研究の開拓前線 -理論的挑戦と新物質開拓-
  • Invited
• [Presentation] 強磁場磁化測定による新規フラストレート磁性体の磁化過程の研究 (2019)
  • Author(s): 吉田紘行
  • Organizer: 強磁場フォーラム総会
  • Invited
• [Presentation] Dual magnetic excitations in S = 1/2 kagome antiferromagnet CaCu3(OH)6Cl2・0.6H2O (2019)
  • Author(s): Hiroyuki Yoshida
  • Organizer: International workshop on topological quantum materials 2019
  • Int'l Joint Research / Invited
• [Presentation] Unusual magnetic ground state with dual magnetic excitations in S = 1/2 J1-J2-Jd kagome antiferromagnet CaCu3(OH)6Cl2・0.6H2O (2018)
  • Author(s): Hiroyuki Yoshida
  • Organizer: 4th International Conference on Functional Materials Science 2018
  • Int'l Joint Research / Invited
• [Presentation] Material development towards the perfect frustration on kagome antiferromagnet (2018)
  • Author(s): Hiroyuki Yoshida
  • Organizer: J-Physics 2018: International Workshop on New Materials and Crystal Growth
  • Int'l Joint Research / Invited
• [Presentation] Magnetic properties of S = 3/2 breathing kagome antiferromagnet Li2Cr3SbO8 (2018)
  • Author(s): 吉田紘行
  • Organizer: 神戸大学フォトサイエンス研究センタースピン系物理研究会
  • Invited
• [Presentation] カゴメ反強磁性体の強磁場磁化過程の実験的研究 (2018)
  • Author(s): 吉田紘行
  • Organizer: スピン系物理の最前線
  • Invited
• [Presentation] Magnetic properties of S = 1/2 antiferromagnetic bond alternating chain system: CaCu2(OH)3Cl3 (2018)
  • Author(s): 吉田紘行
  • Organizer: 第5回西日本強磁場科学研究会
  • Invited
• [Remarks] スピン液体状態における熱ホール効果の発見
  • URL: http://www.issp.u-tokyo.ac.jp/issp_wms/DATA/OPTION/news20160719.pdf