FALSE HEAVY FERMIONS

被引：96

作者：

GSCHNEIDNER, KA

TANG, J

DHAR, SK

GOLDMAN, A

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT MAT SCI & ENGN,AMES,IA 50011

[2] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011

来源：

PHYSICA B | 1990年 / 163卷 / 1-3期

关键词：

D O I：

10.1016/0921-4526(90)90254-R

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

False indications of heavy fermion behavior can arise from non-magnetic atom disorder (NMAD) in a compound in which the Ce(U) atom occupies a periodic lattice. The NMAD introduces a varying electronic environment around the CE(U) ions which causes a spin glass behavior and leads to a large C/T peak near 1 K. The existence of low lying crystal field levels in Ce and U compounds can also lead to large heat capacities which can be interpreted, incorrectly, as heavy fermion behavior. Several examples of each kind of false heavy fermions are described. © 1990.

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页码：507 / 510

页数：4

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