%0 Journal Article
%T The thermal/electronic transport properties of new superconductor MgB2 and MgCNi3<br>新型超导体MgB2和MgCNi3热、电输运性质研究
%A Wu Bai-Mei
%A Li Bo
%A Yang Dong-Sheng
%A Zheng Wei-Hu
%A Li Shi-Yan
%A Cao Lie-Zhao
%A Chen Xian-Hui
%A <br>吴柏枚
%A 李 波
%A 杨东升
%A 郑卫华
%A 李世燕
%A 曹烈兆
%A 陈仙辉
%J 物理学报
%D 2003
%I 
%X The temperature dependence of thermal conductivity and electronic conductivity in superconductor MgB2, MgCNi3 and Bi2Sr2Ca0.9Ce0.1Cu2O8+y are presented. The thermal conductivity of Bi2Sr2Ca0.9Ce 0.1Cu2O8+y shows a peak under Tc observ ed in cuprates, but those of MgB 2 and MgCNi3 decrease monotonously. We calculate the elec tron thermal condu ctivity and the phonon thermal conductivity by Wiedemann-Franz law. The electron s contribute a large fraction to the thermal conductivity in normal state of MgB 2 and MgCNi3 because of the non-localigation of mutual eff ect of electrons. The analysis on electronic thermal conductivity indicates that the scattering by impurities prevails in electronic thermal resistance of both samples.
%K thermal conductivity
%K superconductor
%K MgB
%K 2
%K MgCNi
%K 3<br>热导率，
%K 超导体，
%K MgB2，
%K MgCNi3
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=CDB005FBFF0BFEE4&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=59906B3B2830C2C5&sid=2342D58DCA21B62A&eid=E76E83BE92E4D2E5&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=24