Phase Transitions in Graphite-Alkali Metal Intercalation Compounds(Superconductivity・Intercalation)
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概要
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The phase transitions of C_<24>Rb and C_<36>K have been studied by means of electric resistivity and ac calorimetry measurements. For C_<24>Rb, the resistivity anomalies are observed at temperatures 60, 110, 163 and 202 K, and corresponding anomalies in specific heat are also observed at 40, 102, 165 and 215 K, respectively. For C_<36>K two anomalies in resistivity are observed at 84.6 and 111.0 K, while the specific heat measurement shows four anomalies at 89.4, 114.0, 127.1 and 130.6 K, the latter two of which appear as no anomaly in resistivity. These anomalies in the compounds are related to the order-disorder phase transitions of intercalate alkali metal atoms.
- 東北大学の論文
著者
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SUZUKI M.
Department of Physics, University of Tokyo
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IKEDA H.
Department of Physics, Graduate School of Science, Kyoto University
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Tanuma S.
Institute For Solid State Physics University Of Tokyo
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Suematsu H.
Institute of Materials Science, University of Tsukuba
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Suematsu H.
Institute Of Materials Science University Of Tsukuba
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Ikeda H.
Department Of Infection Control And Prevention Hyogo College Of Medicine
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Suzuki M.
Department of Physics Faculty of Science University of Tokyo
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Tanuma S.
Institute for Solid State Physics, University of Tokyo
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