Physics of YbInCu4 and related compounds

被引：86

作者：

Sarrao, JL ^{[1
]}

机构：

[1] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICA B-CONDENSED MATTER | 1999年 / 259-61卷

基金：

美国国家科学基金会;

关键词：

YbInCu4; valence transition; ytterbium compounds;

D O I：

10.1016/S0921-4526(98)00620-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

YbInCu4 exhibits an isostructural valence transition qualitatively similar to that observed at the gamma-alpha transition in elemental Ce. We have prepared single crystals of this compound and related materials, and here we discuss the emerging understanding of the physics of these systems. In particular, the thermodynamics of the valence transition will be discussed, and its response to chemical doping, external magnetic fields, and applied physical pressure will be reviewed. The existence of a single underlying energy scale associated with the valence transition can be inferred from these data. Low carrier concentration seems to play a central role in the physics of the valence transition and this will be demonstrated by discussing related YbXCu4 materials (where X is a semi-metal or late transition metal) that display a wide range of physical properties. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：128 / 133

页数：6

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