Theory of Spin Fluctuation-Induced Superconductivity Based on a d-p Model
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概要
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Spin flucttration-indtrced supercondtrctivity is studied on a two-din'rensional d-p rnodel by usinga strong coupling theory, and is applied to interjcret higla-T. cuprates, A self-consistent renor-maJization schenae is employed within tlae so-called fltrcttration exchange (FLEX) approxiuaaationor tlue renortnalized randozta phase approxirnation (RRPA). Using tJ're batnd paranueter valvxeswhich approxinaately reprodtnce the observed Fermi strrf'ace and the d- and p-laole nttrnbers esti-mated I'rom NNIR experiunents, we get reasonable valttes for T. in an optirauum and overdopedconcentration range. Tlue dynanaical strsceptibility, the nuclear spin-lattice relaxation rate andthe one electron'n spectral density are xvell coznjcared xvitla tJae existing experimental results.
- 社団法人日本物理学会の論文
- 1997-08-15
著者
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Moriya Toru
Department Of Physics Faculty Of Science And Technology Science University Of Tokyo
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Takimoto Tetsuya
Department of Physics,Faculty of Science and Technology,Science University of Tokyo
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Moriya Toru
Deparment Of Physics Wasea University
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Takimoto Tetsuya
Department Of Physics Faculty Of Science And Technology Science University Of Tokyo
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- Spin Fluctuation-Induced Superconductivity in Two and Three Dimensional Systems
- Theory of Spin Fluctuation-Induced Superconductivity Based on a d-p Model. II. : Superconducting State
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