Spin-1/2 <i>Kagomé</i>-Like Lattice in Volborthite Cu<sub>3</sub>V<sub>2</sub>O<sub>7</sub>(OH)<sub>2</sub>·2H<sub>2</sub>O
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- Hiroi Zenji
- Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581
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- Hanawa Masafumi
- Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581
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- Kobayashi Naoya
- Toda Kogyo Corp., Meijishinkai, Otake, Hiroshima 739-0652
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- Nohara Minoru
- Graduate School of Frontier Sciences, University of Tokyo, Hongo, Bukyo-ku, Tokyo 113-8656
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- Takagi Hidenori
- Graduate School of Frontier Sciences, University of Tokyo, Hongo, Bukyo-ku, Tokyo 113-8656
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- Kato Yoshitomo
- Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581
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- Takigawa Masashi
- Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581
書誌事項
- タイトル別名
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- Spin-1/2 Kagome-Like Lattice in Volborthite Cu3V2O7(OH)2 2H2O.
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抄録
A novel cuprate Volborthite, Cu3V2O7(OH)2·2H2O, containing an S-1/2 (Cu2+ spin) kagomé-like lattice is studied by magnetic susceptibility, specific heat, and 51V NMR measurements. Signs for neither long-range order nor spin-gapped singlet ground states are detected down to 1.8 K, in spite of large antiferromagnetic couplings of ∼100 K between Cu spins forming a two-dimensional kagomé-like network. It is suggested that Volborthite represents a system close to a quantum critical point between classical long-range ordered and quantum disordered phases.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 70 (11), 3377-3384, 2001
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679160015488
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- NII論文ID
- 210000103429
- 10009123655
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- NII書誌ID
- AA00704814
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- BIBCODE
- 2001JPSJ...70.3377H
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- COI
- 1:CAS:528:DC%2BD3MXos1Oksrw%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 5979967
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可