Specific Heat of Kagome Ice in the Pyrochlore Oxide Dy_2Ti_2O_7
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概要
- 論文の詳細を見る
A novel macroscopically degenerate state called kagome ice, which was recently found in a spin ice compound Dy_2Ti_2O_7 in a magnetic field applied along the [111] direction of the cubic unit cell, is studied by specific heal measurements. The residual entropy of the kagome ice is estimated to be 0.65J/Kmol Dy, which is nearly 40% of that for the tetrahedral spin ice obtained in a zero field (1.68J/Kmol Dy) and is in good agreement with a theoretical prediction. It is also reported that the kagome ice state, which is stabilized at a range of magnetic field of 0.3-0.6T, is a "gas" phase and condenses into a "liquid" phase with nearly zero entropy at a critical field of 1 T.
- 社団法人日本物理学会の論文
- 2003-02-15
著者
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TAYAMA Takashi
Institute for Solid State Physics, University of Tokyo
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HIROI Zenji
Institute for Solid State Physics, University of Tokyo
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松平 和之
九州工業大学工学部 電気工学科
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Takagi S
Physics Department Graduate School Of Science Tohoku University
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Takagi Shigeru
Physics Department Graduate School Of Science Tohoku University
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TAKAGI Seishi
Department of Electronics, Faculty of Engineering, Kyushu Institute of Technology
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Hiroi Zenji
Institute For Chemical Research Kyoto University
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Hiroi Zenji
Institute For Solid State Physics University Of Tokyo
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Tayama Takashi
Institute For Solid State Physics University Of Tokyo
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Takagi S
Department Of Electronics Faculty Of Engineering Kyushu Institute Of Technology
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Takagi Seishi
Department Of Electrical Engineering Faculty Of Engineering Osaka University:department Of Electrica
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Matsuda Kyoko
Department Of Material Physics Graduate School Of Engineering Science Osaka University
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MATSUHIRA Kazuyuki
Department of Electronics, Faculty of Engineering, Kyushu Institute of Technology
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SAKAKIBARA Toshio
Institute for Solid State Physics, University of Tokyo
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Sakakibara Toshio
Institute For Solid State Physics University Of Tokyo
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Matsushita Kazuyuki
Division Of Physics Graduate School Of Science Hokkaido University
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Matsuhira Kazuyuki
Department Of Electronics Faculty Of Engineering Kyushu Institute Of Technology
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