Effects of Long-Range Potentials by Impurities in Polyacetylene
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概要
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Existence of nearly free solitons is numerically shown when dopant concentration is less than a critical value which is between 1% and 2%. Taking into account the structure of the Na-doped polyacetylene, observed at 6.67%, we assume a weakly random distribution of the dopants at lower concentrations. They have a long-range potential. Bond configuration and excess electron density are determined for each sample of random distribution. Distribution of potential variation is calculated, together with the phonon density of states and infrared absorption spectra. Below the concentration 1%, translational mode of the nearly free solitons strongly contributes to the spectra. At the concentration higher than 2%, no free charged solitons are found. It indicates the fact that there is the critical concentration between 1% and 2%.
- 理論物理学刊行会の論文
- 1993-10-20
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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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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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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OHFUTI Yasushi
Faculty of Engineering Science, Osaka University
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IWANO Kaoru
Institute for Molecular Science
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Iwano K
Kek‐imss Tsukuba
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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
Faculty Of Engineering Science Osaka University
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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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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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