Polaron versus Bipolaron in Conducting Polymers : a Density Matrix Renormalization Group Study
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概要
- 論文の詳細を見る
Competition betxx'een polaron and bipolaron in conjtrgated polynaers with nondegenerategrotrnd state is systetaaatically sttrdied in the extended Htrbb?trd-Peierls taaodel with thesynametry-breaking Brazovskii-Kirova tertaa, tusing the density raaatrix renorrnalization groupmethod combined with lattice optinaization in the adiabatic approxitnation. XVe denaonstratethat tl'ne relative stability of a loipolarorn over txvo separated polarons sensitively depends onboth on-site Htrbbard U and nearest-neighbor repttlsion V. XX7hen U is natrch l?tr'ger than V, thebipolaron state is more stabilized couaapared with rtaean field calculations.
- 社団法人日本物理学会の論文
- 1998-05-15
著者
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Abe Shuji
Electrotechnical Laboratory
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SHIMOI Yukihiro
Electrotechnical Laboratory
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KUWABARA Makoto
Electrotechnical Laboratory
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