Magnetic Study on Kondo Semiconductor CeNiSn  

作　　者：HOU Yu-min JIN Duo YANG Fu-ming RAN Qi-ze WANG Yu-peng CHEN Zhao-jia HE Yu-sheng 侯玉敏;金铎;杨伏明;冉启泽;王玉鹏;陈兆甲;何豫升(Cryogenic Laboratory,Chinese Academy of Sciences,Beijing 100080;Institute of Physics,Chinese Academy of Sciences,Beijing 100080)

机构地区：[1]Cryogenic Laboratory,Chinese Academy of Sciences,Beijing 100080 [2]Institute of Physics,Chinese Academy of Sciences,Beijing 100080

出　　处：《Chinese Physics Letters》1998年第2期131-133,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.19274049;the National Commission of Science and Technology。

摘　　要：There are two standpoints to explain the formation of the peak of magnetic susceptibility versus temperature in CeNiSn.One is the presence of the pseudo-gapped density of states(DOS)while the other is the development of an antiferromagnetic correlation.To check which one is more reasonable,an experiment is designed on measuring magnetic susceptibility under different magnetic fields.It is found that magnetic field can shift the peak of the magnetic susceptibility to lower temperatures while by calculation the presence of the pseudo-gapped DOS cannot shift the peak,which gives another evidence of the existence of antiferromagnetic correlations and is discussed in the light of some recent theoretical model.

关 键 词：correlation. KONDO SUSCEPTIBILITY 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]