Effects of Impurities in Polyacetylene─Bond-Type Short-Ranged Impurities
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概要
- 論文の詳細を見る
Effects of short ranged bond-type impurities in polyacetylene are investigatednumerically, using a generalized Su-Schrieffer-Heeger's model. Soliton formationand pinning by impurities are studied. Infrared activities are analyzed with relevantphonons. Similarities and differences from site-type impurities are pointed out. It isstriking to find that there may be two types of exotic "solitons". One is a kink in thebond alternation configuration which carries neither charge nor spin. The other is asoliton with a fractional charge and a fractional spin, which appears in a situationwhere the polaron solution is stable in the absence of impurities. The stabilization ofthe exotic solitons is associated with the fact that the particle-hole symmetry stillholds in the presence of the bond-type impurities.
- 社団法人日本物理学会の論文
- 1989-11-15
著者
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ONO Yoshiyuki
Department of Physics,Toho University
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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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Ono Yoshiyuki
Faculty Of Science Toho University
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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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OHFUTI Yasushi
Department of Physics,Faculty of Sciences,University of Tokyo
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TERAI Akira
Department of Physics,Kitasato University
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Wada Yasuhiro
Department Of Materials Science Faculty Of Science Hiroshima University
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Terai A
Osaka City Univ. Osaka
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IWANO Kaoru
Department of Physics,University of Tokyo
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Ono Yoshiyuki
Department Of Physicis Toho University
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Iwano K
Kek‐imss Tsukuba
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Iwano Kaoru
Department Of Physics University Of Tokyo
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Terai Akira
Department Of Applied Physics Osaka City University
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Ohfuti Y
Faculty Of Engineering Science Osaka University
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Ohfuti Yasushi
Department Of Physics Faculty Of Science University Of Tokyo
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WADA Yasushi
Tohoku University of Art and Design
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Wada Yasushi
Department Of Physics Tokyo University
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Wada Yasushi
Department of Materials Science,Faculty of Science,Hiroshima University
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Ono Yoshiyuki
Department of Physics,University of Tokyo
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Terai Akira
Kyoto Institute of Technology
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IWANO Kaoru
Institute for Molecular Science The Graduate University for Advanced Studies : Photon Factory, National Laboratory for High Energy Physics
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Ohfuti Yasushi
Department of Material Physics,Osaka University
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