%0 Journal Article
%T LOW-TEMPERATURE RESISTANCE MINIMUM AND ITS ORIGIN IN La2/3Ca1/3Mn1-xCuxO3(x=0.15) SYSTEM<br>La2/3Ca1/3Mn1-xCuxO3(x=0.15)系统低温下的电阻极小值现象及其起因
%A LI GUANG
%A TANG PING
%A SUN XIA
%A JIANG YONG
%A CHEN YUE
%A WANG SHENG
%A HUANG ZHEN
%A YUAN SONG-LIU
%A <br>李 广
%A 汤 萍
%A 孙 霞
%A 姜 勇
%A 陈 岳
%A 王 胜
%A 黄 真
%A 袁松柳
%J 物理学报
%D 1999
%I 
%X The temperature dependence of resistance in the La2/3Ca1/3Mn1-xCuxO3(x=0 and 0.15) system at temperatures much lower than Curie temperature has been experimentally studied. It is found that a resistance minimum obviously appears in the zero-field R-T curve of the Cu-doped sample. Such a resistance minimum disappears when a magnetic field is applied to the sample. Based on Kondo theory, a quantitative comparison between the theory and the experimental data has been presented. It is shown that the experimental observation can be well understood within the framework of Kondo theory.
%K LCMCO系统
%K 低温
%K 超导体
%K 电阻极小值
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=52C3612222CD817D5337BDA8AEEE2043&yid=B914830F5B1D1078&vid=B6DA1AC076E37400&iid=38B194292C032A66&sid=42D7028D961473F8&eid=25467A5A28500A25&journal_id=1000-3290&journal_name=物理学报&referenced_num=9&reference_num=2