Quantum Spin Liquid State in Spin-1/2 Kagome Copper Minerals
Project/Area Number |
21740246
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Condensed matter physics II
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Research Institution | The University of Tokyo |
Principal Investigator |
OKAMOTO Yoshihiko The University of Tokyo, 物性研究所, 助教 (90435636)
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Project Period (FY) |
2009 – 2010
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Project Status |
Completed (Fiscal Year 2010)
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Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | スピン液体 / 幾何学的フラストレーション / カゴメ格子 / 銅鉱物 / 量子スピン / フラストレーション |
Research Abstract |
High quality samples of volborthite and vesignieite were synthesized and physical properties of them were measured to clarify the nature of the quantum spin liquid state, which is expected to appear in a spin-1/2 kagome antiferromagnet. We find that vesignieite is a strong candidate to have the spin liquid ground state, and both compounds show anomalous magnetization plateau in their magnetization curves.
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Report
(3 results)
Research Products
(33 results)
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[Journal Article] Magnetization "Steps" on a Kagome Lattice in Volborthite2009
Author(s)
H.Yoshida, Y.Okamoto, T.Tayama, T.Sakakibara, M.Tokunaga, A.Matsuo, Y.Narumi, K.Kindo, M.Yoshida, M.Takigawa, Z.Hiroi
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Journal Title
Journal of Physical Society of Japan 78
NAID
Related Report
Peer Reviewed
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[Journal Article] Magnetization "Steps" on a Kagome Lattice in Volborthite2009
Author(s)
H.Yoshida, Y.Okamoto, T.Tayama, T.Sakakibara, M.Tokunaga, A.Matsuo, Y.Narumi, K.Kindo, M.Yoshida, M.Takigawa, Z.Hiroi
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Journal Title
NAID
Related Report
Peer Reviewed
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