EVOLUTION OF A MAGNETIC STATE IN YBCU5-XGAX

被引：25

作者：

BAUER, E

TUAN, L

HAUSER, R

GRATZ, E

HOLUBAR, T

HILSCHER, G

MICHOR, H

PERTHOLD, W

GODART, C

ALLENO, E

HIEBL, K

机构：

[1] CNRS,F-92195 MEUDON,FRANCE

[2] UNIV PARIS 11,UTILISAT RAYONNEMENT ELECTROMAGNET LAB,CNRS,F-91405 ORSAY,FRANCE

[3] UNIV VIENNA,INST PHYS CHEM,A-1090 VIENNA,AUSTRIA

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.52.4327

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Substitutions of Cu by Ga in YbCu5 stabilize the hexagonal CaCu5 structure and cause a crossover from a divalent behavior of the Yb ion in YbCu5 to an almost 3+ state of Yb in YbCu3Ga2. This gain of magnetism is accompanied by a noticeable enhancement of the electronic contribution to the specific heat. External pressure transforms those compounds, exhibiting intermediate valence, to a state which is best described in terms of the Kondo lattice model.

引用

页码：4327 / 4335

页数：9

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