Eilenberger Equations in trans-Polyacetylene with Random Disorder
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概要
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Eilenberger equations are derived for trans-polyacetylene with random impurities.The Takayama-Lin-Liu-Maki model is generalized to include the impurity effect. Twotypes of disorders, namely, site-type and bond-type are studied. Since the originalderivation, for dirty superconductors, does not work for the Peierls system, newderivation is given with the help of self-consistent argument. The equations are solved, using the assumption that dimerization pattern is uniform. It turns out there areno differences between the two types of disorders and we get exactly the same resultsas for the gapless superconductors with paramagnetic impurities. Electronic densityof states and order parameter are calculated as functions of disorder parameter. Theyare compared with the results by Xu and Trullinger, obtained by supersymmetryarguments. Present method gives an overall agreement as far as the density of states isconcerned. There is a difference in the order parameter.
- 社団法人日本物理学会の論文
- 1989-02-15
著者
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Wada Yasushi
Department Of Physics University Of Tokyo : Tohoku University Of Art And Design
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Wada Yasushi
Department Of Physics University Of Tokyo:institute For Theoretical Physics University Of California
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Wada Y
Tohoku University Of Art And Design
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Wada Yasushi
Department Of Physics University Of Tokyo
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Wada Yasuhiro
Department Of Materials Science Faculty Of Science Hiroshima University
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IWANO Kaoru
Department of Physics,University of Tokyo
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Iwano Kaoru
Department Of Physics University Of Tokyo
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WADA Yasushi
Tohoku University of Art and Design
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Wada Yasushi
Department of Materials Science,Faculty of Science,Hiroshima University
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