重电子金属CeCu5.8M0.2（M=Ni, Zn, Cd）低温物性的比较 -

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重电子金属CeCu5.8M0.2（M=Ni, Zn, Cd）低温物性的比较

, 2004, 53(4): 1177-1181.

DOI: 10.7498/aps.53.1177

CSTR: 32037.14.aps.53.1177

The contrast on low-temperature physical property of heavy electron compounds CeCu5.8M0.2(M=Ni, Zn, Cd)

Acta Phys. Sin., 2004, 53(4): 1177-1181.

DOI: 10.7498/aps.53.1177

CSTR: 32037.14.aps.53.1177

摘要
研究了不同元素等量掺杂下重电子金属CeCu5.8M0.2(M=Ni，Zn，Cd)低温电阻、比热容和磁化率随温度的变化关系.分析讨论了掺杂元素M(M=Ni，Zn，Cd)的磁性、价态及原子尺寸对近藤温度TK、相干温度（即电阻极大值的温度ＴRmax）、每个Ce离子在较高温度时的平均磁矩μＢ以及在温度降低时被传导电子自旋屏蔽过程的影响.

关键词:
重电子系统 /

低温电阻 /

低温比热容 /

磁化率
Abstract
In this paper, we report the resistance, specific heat and susceptibility of heavy electron compounds CeCu5.8M0.2(M=Ni，Zn，Cd) as functions of temperature from 1.8 K to 300 K. The effects of magnetism, valence and atom size of different doping elements on Kondo temperature TK, coherent temperature TRmax (e.g. the temperature of maximum resistance) and other parameters have been discussed.

Keywords:
heavy electron system /

low-temperature resistance /

low-temperature specific heat /

susceptibility
作者及机构信息
孟继宝,

陈兆甲,

雒建林,

景秀年,

王楠林
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