%0 Journal Article
%T A SUPERCELL CALCULATION OF ELECTRONIC STRUCTURE IN SUPERCONDUCTOR Ba1-xKxBiO3 (x=0.25, 0.5 and 0.75)<br>用线性丸盒轨道原子球近似超元胞法计算(Ba1-xKx)BiO3立方超导相(x=0.25,0.5,0.75)的电子结构
%A SHEN YAO-WEN
%A HUANG MEI-CHUN
%A <br>沈耀文
%A 黄美纯
%J 物理学报
%D 1992
%I 
%X Electronic structure for ordered Ba1-xKx)BiO3 alloys has been calculated with a supercell LMTO method. The results indicate that the band parameters obtained from this approach are more accurate than that from rigid-band approximation. The composition dependence of the band parameters at Fermi surface is given. The hybrid feature of the valence orbitals between the inequivalent oxygen and metal atoms is discussed.
%K 超导体
%K 高温超导性
%K 电子结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=1150A4EB01A57B370D8BEDC8F8D6CE6D&yid=F53A2717BDB04D52&vid=2001E0D53B7B80EC&iid=9CF7A0430CBB2DFD&sid=777A6C995272142B&eid=142CA2F7BF1B30ED&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0