Study of the quantum spin liquid state of S = 1/2 kagome lattice antiferromagnet
Project/Area Number |
15K17686
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics II
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Research Institution | Hokkaido University |
Principal Investigator |
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Project Period (FY) |
2015-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | 幾何学的フラストレーション / スピン液体 / カゴメ格子反強磁性体 / Ca-Kapellasite / フラストレーション |
Outline of Final Research Achievements |
We developed the spin-1/2 Kagome lattice antiferromagnet CaCu3(OH)6Cl2・0.6H2O (Ca-Kapellasite) which had the perfect Kagome lattice without an anti-site disorder. Theoretical studies have predicted the realization of the quantum spin liquid state in which the spin fluctuation survives even at T = 0. By measuring various physical properties of the single crystal of the compound, we found that the unconventional magnetic state was realized and the anomalous magnetic excitation underlay on the ground state of CaCu3(OH)6Cl2・0.6H2O.
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Report
(3 results)
Research Products
(12 results)
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[Journal Article] Unusual Magnetic State with Dual Magnetic Excitations in the Single Crystal of S = 1/2 Kagome Lattice Antiferromagnet CaCu3(OH)6Cl2・0.6H2O2017
Author(s)
H. Yoshida, N. Noguchi, Y. Matsushita, Y. Ishii, Y. Ihara, M. Oda, H. Okabe, S. Yamashita, Y. Nakazawa, A. Takata, T. Kida, Y. Narumi, and M. Hagiwara
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Journal Title
Journal of the Physical Society of Japan
Volume: 86
Issue: 3
Pages: 033704-033704
DOI
NAID
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] S = 1/2カゴメ格子反強磁性体CaCu3(OH)6Cl2・0.6H2Oの35Cl-NMRによる研究2017
Author(s)
吉田紘行, 井原慶彦, 野口直彌, 石井裕人, 高田篤, 木田孝則, 鳴海康雄, 萩原政幸, 河本充司, 佐々木孝彦, 小田研
Organizer
日本物理学会第72回年次大会
Place of Presentation
大阪大学(大阪府・豊中市)
Year and Date
2017-03-17
Related Report
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[Presentation] S = 1/2カゴメ格子反強磁性体CaCu3(OH)6Cl2・0.6H2O単結晶の磁性2016
Author(s)
吉田紘行, 野口直彌, 石井裕人, 片岡萌子, 小田研, 岡部博孝, 飯田一樹, 山下智史, 中澤康浩, 高田篤, 木田孝則, 鳴海康雄, 萩原政幸
Organizer
日本物理学会2016年秋季大会
Place of Presentation
金沢大学(石川県・金沢市)
Year and Date
2016-09-13
Related Report
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[Presentation] Magnetic properties of S = 1/2 kagome lattice antiferromagnet CaCu3(OH)6Cl2・0.6H2O2016
Author(s)
H. Yoshida, N. Noguchi, Y. Ishii, M. Oda, H. Okabe, S. Yamashita, Y. Nakazawa, A. Takata, T, Kida, Y. Narumi, M. Hagiwara
Organizer
International conference on Highly Frustrated Magnetism 2016
Place of Presentation
Taipei(Taiwan)
Year and Date
2016-09-07
Related Report
Int'l Joint Research
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