NMR Study of Anomalous CDW Behaviors in a Layered Copper Sulfide, K_3Cu_8S_6
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概要
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The NMR method has been applied to investigate the electronic states of K_3Cu_8S_6, a copper sulfide with a layered structure. This compound has been known to show anomalous CDW behaviors such as the metal-CDW-metal transitions at T_<c1> (153 K) and T_<C2> (55 K), respectively. We measured the temperature dependences of the Knight shifts for the four Cu sites to investigate mainly the nature of the metallic state below T_<c2>. As a result, it has turned out that the CDW state remains even below T_<c2> although the material shows a metallic character, and that the Knight shifts for all the Cu sites do not change at T_<c2>. For these results, we propose as one of the possible interpretations that the state below T_<c2> is a metallic state with the CDW but no Fermi surface, i. e. the metallic state without the Pauli paramagnetism.
- 社団法人日本物理学会の論文
- 1995-04-15
著者
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UEDA Yutaka
Institute for Solid State Physics, University of Tokyo
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YASUOKA Hiroshi
Institute for Solid State Physics,University of Tokyo
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ISOBE Masahiko
Institute for Solid State Physics, The University of Tokyo
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Ueda Yutaka
Institute For Solid State Physics University Of Tokyo
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Isobe M
Materials Design And Characterization Laboratory Institute For Solid State Physics University Of Tok
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GOTO Atsushi
National Institute for Materials Science
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Isobe Masahiko
Institute For Materials Research Tohoku University
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Goto Atsushi
Institute for Solid State Physics, University of Tokyo
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Hayashi Akihiko
Institute for Solid State Physics, University of Tokyo
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Yasuoka Hiroshi
Institute For Chemistry Research Kyoto University
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Yasuoka Hiroshi
Department Of Mathematics And Physics The National Defense Academy
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Goto Atsushi
National Research Institute For Metals
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Goto Atsushi
Institute For Solid State Physics University Of Tokyo
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Goto A
National Research Laboratory For Metal
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Isobe M
Department Of Physics Nagoya University
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Hayashi A
Institute For Solid State Physics University Of Tokyo
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YASUOKA Hiroshi
ISSP of the University of Tokyo
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Goto Atsushi
Institute For Chemical Research Kyoto Univeristy
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Yasuoka Hiroshi
Institute Fo Solid State Physics University Of Tokyo
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Ueda Yutaka
Institute For Solid State Physic The University Of Tokyo
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Goto Atsushi
National Institute for Materials Science (NIMS)
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