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物理学报. 1991, 40(6): 957-961.
doi: 10.7498/aps.40.957.
电子关联和孤子
- 收稿日期: 1990-08-31
- 刊出日期: 1991-03-05
摘要: 聚乙炔中的电子关联和孤子可用相关基函数方法(CBF)来研究,通过考虑完全的电子-电子相互作用,得到含有单个电荷的奇数原子链的稳定位形为孤子的结论,随着电子-电子互作用强度U和互作用程α/β的增加,孤子定域性加强,产生能降低,因此,即使计入电子-电子相互作用,孤子仍然是导电聚合物中的主要载流子。
English Abstract
ELECTRON CORRELATION AND SOLITON
- Received Date:
31 August 1990
- Published Online:
05 March 1991
Abstract: The electron correlation and soliton in polyacetylene have been studied with the CBF method. By considering the complete electron-electron interaction, we concluded that the stable static configuration of a PA chain with odd atoms and a single electric charge is a soliton. With the increase of e-e interaction strength U and interaction range α/β the localization of soliton is enhanced, and the soliton creation energy is reduced, so although the e-e interaction is considered, the conclusion that soliton is main charged carrier in high conducting polymers is still tenable.
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