Spin-1/2 Kagomé-Like Lattice in Volborthite Cu3V2O7(OH)2·2H2O
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概要
- 論文の詳細を見る
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.
- Physical Society of Japanの論文
- 2001-11-15
著者
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Takagi Hidenori
Graduate School of Frontier Sciences, University of Tokyo
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Hiroi Zenji
Institute For Chemical Research Kyoto University
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Takigawa Masashi
Institute For Solid State Physics Iniversity Of Tokyo
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Nohara Minoru
Graduate School Of Frontier Sciences University Of Tokyo
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KOBAYASHI Naoya
Toda Kogyo Corp.
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Kato Yoshitomo
Institute For Solid State Physics University Of Tokyo
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Hanawa Masafumi
Institute For Solid State Physics University Of Tokyo
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Takigawa Masashi
Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa,
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Hiroi Zenji
Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa,
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Hanawa Masafumi
Institute for Solid State Physics, University of Tokyo, Kashiwanoha, Kashiwa,
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Takagi Hidenori
Graduate School of Frontier Sciences, University of Tokyo, Hongo, Bukyo-ku,
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Nohara Minoru
Graduate School of Frontier Sciences, University of Tokyo, Hongo, Bukyo-ku,
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Kobayashi Naoya
Toda Kogyo Corp., Meijishinkai, Otake, Hiroshima 739-0652
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