Uniaxial pressure dependence of the Neel temperature in CeCu5.8Au0.2

被引：17

作者：

Sieck, M ^{[1
]}

Huster, F ^{[1
]}

vonLohneysen, H ^{[1
]}

机构：

[1] UNIV KARLSRUHE,INST PHYS,D-76128 KARLSRUHE,GERMANY

来源：

PHYSICA B | 1997年 / 230卷

关键词：

CeCu5.8Au0.2; pressure dependence; specific heat;

D O I：

10.1016/S0921-4526(96)00753-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Neel temperature T-N of CeCu5.8Au0.2 which is an incommensurate antiferromagnet below similar to 0.25 K decreases under hydrostatic pressure as found previously for other alloys of this system. Measurements of the specific heat C show that uniaxial pressure parallel to the b and c axes of the orthorhombic crystal suppresses T-N but pressure parallel to the a direction leads to an increase of T-N. Apparently, the antiferromagnetic component of the RKKY interaction leading to the incommensurate order is stabilized by a reduction of a. Non-Fermi-liquid behavior in C(T) is observed at pressure for which T-N --> 0.

引用

页码：583 / 586

页数：4

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