NEGATIVE THERMAL-EXPANSION COEFFICIENT IN THE KONDO LATTICE

被引：8

作者：

BASTIDE, C

LACROIX, C

机构：

[1] CNRS, Grenoble, Fr, CNRS, Grenoble, Fr

来源：

SOLID STATE COMMUNICATIONS | 1986年 / 59卷 / 03期

关键词：

CERIUM ALUMINUM ALLOYS - Physical Properties;

D O I：

10.1016/0038-1098(86)90192-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The thermal expansion coefficient is calculated for a two bands Fermi liquid. It is shown that the interband electronic transfer can give a large contribution. The calculation is applied to the Kondo lattice. The thermal expansion coefficient alpha can be negative for a certain range of values of the Kondo temperature, and a pseudo-gap is necessary. The experimental results about CeAl//3 are correctly interpreted by our model.

引用

页码：121 / 125

页数：5

共 14 条

[1]

AKHIEZER IA, 1974, SOV PHYS JETP, V39, P1135

[2] 4F-VIRTUAL-BOUND-STATE FORMATION IN CEAL-3 AT LOW-TEMPERATURES [J].