Pseudo Spin-Gap Spectrum in the Monolayer HgBa_2CuO_<4+δ>
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概要
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We report the doping dependence of the planar "Cu Knight shift ("A), the ntrclear spinlattice relaxation rate "(l/TjT) and the Gaussian spin-echo decay rate "(l/'Z'G) for the high-T.naonolayer HgBaz CtrOjj,5 over a wide doping range ['Z'.:50, 72, 82 K (underdoping), 96 K (optiunal doping) and 3OK (overdoping)], rneasured by the Cu NM[R spin-echo technique. We f'oundthe following new facts; (l) both the static and the dynamical spin susceptibilities exhibit thepsettdo spin-gap behavior over a wide q region arotrnd the staggered mode Q, (2) the dynaznicalpseudo spin-gap in l / T) T can mainly be ascri bed to the static one in l / Tc), and (3) a spin Iluctuation amplittrde probed by the empirical ratio T)T/(T0)' is a rnonotonic decreasing ftrnction ofthe doping level but not proportional to 'Z'.. Frona comparison with Lad .Sr.CuO,j, we discussedthe role of the pseudo spin-gap in the high-T. superconductivity.
- 社団法人日本物理学会の論文
- 1998-01-15
著者
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安岡 宏志
東大物性研
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安岡 弘志
原研先端研
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YASUOKA Hiroshi
Institute for Solid State Physics,University of Tokyo
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ADACHI Seiji
Superconductivity Research Laboratory, International Superconductivity Technology Center
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TANABE Keiichi
Superconductivity Research Laboratory, International Superconductivity Technology Center
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Itoh Y
Shizuoka Univ. Shizuoka
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Itoh Y
Superconductivity Research Laboratory International Superconductivity Technology Center
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Machi Takao
Superconductivity Research Laboratory International Superconductivity Technology Center
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Tanabe K
Superconductivity Research Laboratory International Superconductivity Technology Center
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ITOH Yutaka
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
Institute For Solid State Physics University Of Tokyo
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Yasuoka Hiroshi
Dept. Math. & Phys. National Defense Academy
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Yasuoka Hiroshi
Department Of Mathematics And Physics The National Defense Academy
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Adachi Seiji
Superconductivity Research Laboratory International Superconductivity Technology Center
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FUKUOKA Atsushi
Superconductivity Research Laboratory, International Superconductivity Technology Center
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Tanabe Keiichi
Superconductivity Res. Lab. Istec
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Tanabe K
International Superconductivity Technol. Center Tokyo Jpn
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MACHI Takato
Superconductivity Research Laboratory,International Superconductivity Technology Center
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Yamagata Hideki
Faculty Of Science Kochi University
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Machi Takato
Superconductivity Research Laboratory International Superconductivity Technology Center
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YASUOKA Hiroshi
ISSP of the University of Tokyo
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Fukuoka A
Hokkaido Univ. Sapporo Jpn
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Fukuoka Atsushi
Superconductivity Research Laboratory International Superconductivity Technology Center:(present Add
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Yamanaka Hideaki
Information Technology R Amp D Center Mitsubishi Electric Corporation
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Itoh Yutaka
Institute For Solid State Physics The University Of Tokyo
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Itoh Yuichi
Faculty Of Human Cultures Fukuyama University
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Yasuoka Hiroshi
Institute Fo Solid State Physics University Of Tokyo
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Yasuoka Hiroshi
Department Of Metal Science And Technology Kyoto University:(present Address) Institute For Solid St
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Yasuoka Hiroshi
Department Of Metal Scisnce And Technology Kyoto University
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Itoh Yutaka
Department of Material Science, Faculty of Science, Kochi University
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Machi Takato
Superconductivity Research Laboratory, International Superconductivity Technology Centre
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