MAGNETIC PHASE-TRANSITIONS IN HEAVY-FERMION COMPOUNDS STUDIED BY THERMAL-EXPANSION MEASUREMENTS

被引：14

作者：

DEVISSER, A ^{[1
]}

LACERDA, A ^{[1
]}

FRANSE, JJM ^{[1
]}

FLOUQUET, J ^{[1
]}

机构：

[1] CNRS,CTR RECH TRES BASSES TEMP,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1990年 / 90-1卷

关键词：

D O I：

10.1016/S0304-8853(10)80136-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

On alloying the heavy-fermion compounds CeRu2Si2 and UPt3 with small amounts of La and Pd, respectively, long-range antiferromagnetic order develops with Neel temperatures in the order of a few kelvin. In order to study the volume effects that are involved with the evolution into the long-range ordered state, we have performed thermal-expansion measurements on the pure and doped systems. The results are compared with data on antiferromagnetic URu2Si2. Subsequently, we discuss thermal-expansion measurements in high-magnetic fields, in particular on CeRu2Si2, where a metamagnetic-like transition occurs as the intersite-correlations collapse in a field of 7.8 T. Most of the measurements have been performed on single-crystalline samples, revealing a pronounced anisotropy.

引用

页码：369 / 373

页数：5

共 36 条

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