Non-Fermi-liquid behaviour of ytterbium compounds

被引：2
|
作者：
Bauer, E [1 ]
机构：
[1] Vienna Tech Univ, Inst Expt Phys, A-1040 Vienna, Austria
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 196卷
关键词：
non-Fermi-liquid; YbCu5-xAlx; Kondo interaction; quantum critical point;
D O I：
10.1016/S0304-8853(98)00966-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The increasing valency of the Yb ion when Cu is substituted by Al in YbCu5-xAlx causes a magnetic instability at a critical concentration x(cr) approximate to 1.5. Alloys in the vicinity of x(cr) are characterised by a - ln T contribution to the specific heat and substantial deviations of the electrical resistivity from a T-2 dependence. Similar features have been observed in a number of Ce and U based systems, and are considered as typical fingerprints of a non-Fermi-liquid behaviour. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：873 / 877
页数：5
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