%0 Journal Article
%T EFFECTS OF HUBBARD INTERACTION AND SITE-TYPE IMPURITY POTENTIAL ON ELECTRONIC STATES IN TRANS-POLYACETYLENE<br>Hubbard电子强关联与site-type杂质势对反式聚乙炔电子态的影响
%A JIA RONG-YI
%A YAN LI-GEN
%A <br>贾荣谊
%A 阎立根
%J 物理学报
%D 1992
%I 
%X In this paper, the SSH mode] has been extended to include the site-type impurity potential and the Hubbard interaction. The energy spectra and the electronic states of soliton in transpolyacetylene have been studied by the self-consistent iterative approach. Our numerical calculations have shown that the important differences in the effects of impurity potential and Hubbard interaction on electronic states of soliton. Namely, the site-type impurity potential is to shift the midgap states of the charged solitons in the opposite direction with Hubbafd interaction. Our conclusion are coincident with experimental results
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=EEF00EEA576EE6D278C4F074C1DAED0B&yid=F53A2717BDB04D52&vid=2001E0D53B7B80EC&iid=708DD6B15D2464E8&sid=1A1522797E8D4D41&eid=498CA27CD8E53B72&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0