%0 Journal Article
%T ELECTRON CORRELATION AND TWO-DIMENSIONAL LATTICE INSTABILITY<br>电子关联与二维晶格的不稳定性
%A LIU JING-NAN
%A SUN XIN
%A <br>刘晶南
%A 孙鑫
%J 物理学报
%D 1992
%I 
%X Starting from the screened Coulomb electron interaction, the energy band and electron wave function of two-dimensional unstable lattice system are calculated by using the Wannier function. The effect of electron correlation on two-dimensional lattice instability is studied by means of the electron correlation function. Our results show that the electron interaction reduces the two-dimensional lattice dimerization, which is different from the one-dimensional case.
%K 二维
%K 晶格
%K 不稳定性
%K 电子关联
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=34F1CBB2E1F600067BC496AEE2717B30&yid=F53A2717BDB04D52&vid=2001E0D53B7B80EC&iid=CA4FD0336C81A37A&sid=E203FB1A272C9DD2&eid=7AA74D31F1FF2DCE&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=6