%0 Journal Article
%T TWO-DIMENSIONAL BISOLITON MODEL IN CuO2 SQUARE CRYSTAL LATTICE<br>CuO2正方晶格的二维双孤子模型
%A YUAN LI-BO
%A SU JING-HUI
%A <br>苑立波
%A 苏景辉
%J 物理学报
%D 1996
%I 
%X A moderately strong electron-phonon interaction is supposed to be the causes of paring. On the basis of (1) the observation that the local electron-phonon interaction is rather strong in experiment and (2) the quasi-two-dimensional feature of CuO2 plane in ceramic oxides, a two-dimensional bisoli-ton model is established. The soliton solution with topological stability is given. It is shown that the bisoliton moves always with a velocity less than that of sound and it is varied along different direc-tions, they do not emit phonons, i.e., they do not transform their kinetic energy into a thermal one. The absence of an isotopic effect is explained because the critical temperature is independent of the mass of crystal lattice cell.
%K 氧化物
%K 高温
%K 超导体
%K 晶格
%K 二维
%K 双孤子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=7411BF4698E837341764DB9127120B78&yid=8A15F8B0AA0E5323&vid=94E7F66E6C42FA23&iid=DF92D298D3FF1E6E&sid=C698B4DF5D56174F&eid=C4B40BDE3E33484C&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=2