mu SR studies of low charge carrier density heavy-fermion systems

被引：2

作者：

Amato, A

Feyerherm, R

Gygax, FN

Schenck, A

Kasaya, M

Suzuki, T

Takagi, S

Ochiai, A

机构：

[1] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 98077,JAPAN

[2] NIIGATA UNIV,DEPT MAT SCI & TECHNOL,NIIGATA 95021,JAPAN

来源：

HYPERFINE INTERACTIONS | 1997年 / 104卷 / 1-4期

关键词：

Heavy Fermion; Kondo Effect; Magnetic Polaron; Depolarization Rate; Kondo Resonance;

D O I：

10.1023/A:1012671608866

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We report on mu SR studies in low charge carrier density heavy-fermion systems with cubic symmetry. Whereas for Ce3Au3Sb4 and for Sm3Te4 the mu SR data point to the presence of some kind of spin-glass-like magnetic states at low temperature, for Yb4As3 preliminary mu SR studies just show a slight increase of the depolarization rate which indicates a slight slowing down of the Yb-moment fluctuations. Consequently for this latter system, the large linear term of the specific heat seems indeed to be connected to electronic excitations.

引用

页码：165 / 170

页数：6