ANOMALOUS SPECIFIC-HEAT OF CE1-XTHX RHSB ALLOYS

被引：23

作者：

ANDRAKA, B

机构：

[1] Department of Physics, University of Florida, Gainesville

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.49.348

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low-temperature specific heat and magnetic susceptibility for Ce1-xThxRhSb alloys, 0 less-than-or-equal-to x less-than-or-equal-to 0.6, have been investigated. CeRhSb, identified previously as a Kondo insulator, has C/T > 30 mJ/K2 mol at T-->0 K. Above 6 K, C/T is proportional to T2 yielding a high-temperature gamma of 90 mJ/K2 mol. Th substitution for Ce causes large, but non-Kondo-like enhancement of the specific heat. Alloys corresponding to 0.3 less-than-or-equal-to x less-than-or-equal-to 0.4 belong to the heaviest Ce-based heavy fermions.

引用

页码：348 / 351

页数：4

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