Magnon Drag Thermoelectric Power in Magnetic Graphite Intercalation Compounds
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概要
- 論文の詳細を見る
Thermoelectric power (TIP) of first-stage non-magnetic graphite acceptor inter-calation compounds drops rapidly to a negligibly small value below 7 K. In contrastto the non-magnetic GICs, the magnetic compounds such as first-stage Feel.- andCoCl.-GICs exhibit much larger TEP, which is expected to be due to the magnondrag effect. This prediction is confirmed theoretically in this article. The presentcalculation is carried out for CoCl.-GIC, since its magnetic properties have been extensuvely studied. The dispersion relation for the long wavelength magnons isphonon-like. This is due to the 2D-character of the spin systent. By solving the cou-pled Boltzmann equation for carriers and magnons the ntagnon drag TEP iscalculated and the calculated temperature dependence is proportional to T at low fernperatures, which is consistent with the measurement. The calculated value has thesame order of magnitude as the observed one.
- 社団法人日本物理学会の論文
- 1990-08-15
著者
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Kobayashi K
Department Of Material Science Graduate School Of Science Osaka City University
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SUGIHARA Ko
College of Pharmacy,Nihon University
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Kobayashi K
College Of Pharmacy Nihon University
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Kobayashi K
Department Of Electrical Engineering And Information Systems The University Of Tokyo
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KOBAYASHI Koji
College of Pharmacy,Nihon University
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OSHIMA Hisashi
College of Pharmacy,Nihon University
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Sugihara K
College Of Pharmacy Nihon University
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Sugihara Ko
College Of Pharmacy Nihon University
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Sugihara Ko
Central Research Laboratory Matsushita Electric Industrial Co. Ltd.
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Oshima H
College Of Pharmacy Nihon University
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Oshima Hisashi
College Of Science And Technology Nihon University
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