THERMAL-EXPANSION AND MAGNETOSTRICTION OF SUPERCONDUCTING URU2SI2

被引：16

作者：

VANDIJK, NH

DEVISSER, A

FRANSE, JJM

MENOVSKY, AA

机构：

[1] Van Der Waals-Zeeman Laboratory, University of Amsterdam, 1018 XE Amsterdam

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.51.12665

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dilatation measurements have been performed on a single-crystalline sample of the heavy-fermion superconductor URu2Si2 (Tc=1.2 K). Thermal-expansion measurements in combination with specific-heat data reveal a thermal electronic Grüneisen parameter of ΓT=27. A comparison with the magnetic electronic Grüneisen parameter derived from the magnetostriction, ΓB=26, points to a single energy scale. The measured magnetostriction is strongly anisotropic with a peculiar hysteresis. Close to the upper critical field, a change of sign in the magnetostrictive hysteresis is observed. © 1995 The American Physical Society.

引用

页码：12665 / 12672

页数：8

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