TRANSPORT-PROPERTIES OF CEAU(2-X)CU(X)IN

被引：0
|
作者：
SAKURAI, J [1 ]
AKIYAMA, K [1 ]
KONDO, K [1 ]
ISIKAWA, Y [1 ]
NISHIMURA, K [1 ]
MORI, K [1 ]
机构：
[1] TOYAMA UNIV,FAC ENGN,TOYAMA 930,JAPAN
来源：
PHYSICA B | 1994年 / 199卷
关键词：
Arc melting - Heusler type crystal - Jahn Teller effect - Kondo interaction - Neel temperature - Thermopower - Transition temperature;
D O I：
10.1016/0921-4526(94)91905-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Measurements on the electrical resistivity rho, the thermopower S and the specific heat C have been done on CeAu2-xCuxIn samples (0 less-than-or-equal-to x less-than-or-equal-to 0.5) having a cubic Heusler-type crystal. A crystal-phase transition possibly originating from a band Jahn-Teller effect was evidenced from sudden changes of rho and S. Neel temperature T(N) of the samples was found to be 1.2 K and did not depend on the value of x. Structures in rho and S are considered to originate from a Kondo interaction. However, a small and negative value of S and a realization of a full entropy value of R In 2 slightly above T(N) indicate that the Kondo interaction is weak.
引用
收藏
页码：561 / 562
页数：2
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