EFFECT OF UNIAXIAL-STRESS ON THE ONSET OF SUPERCONDUCTIVITY IN UPT3

被引：2

作者：

GREITER, M ^{[1
]}

LONZARICH, GG ^{[1
]}

TAILLEFER, L ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

PHYSICS LETTERS A | 1992年 / 169卷 / 03期

关键词：

D O I：

10.1016/0375-9601(92)90594-C

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of uniaxial stress on the upper superconducting transition temperature of the heavy-fermion compound UPt3 has been investigated for compression of up to 800 bars applied along each of the three high-symmetry axes of a single crystal of high purity. The results provide estimates of those coefficients in a Landau expansion of the free energy which represent the coupling of the multicomponent superconducting order parameter to the strain and to the antiferromagnetic moments. The parameter describing an anisotropic coupling in the basal plane is found to be unexpectedly small.

引用

页码：199 / 204

页数：6

共 26 条

[1] MAGNETIC ORDER AND FLUCTUATIONS IN SUPERCONDUCTING UPT3 [J].

AEPPLI, G ;

BUCHER, E ;

BROHOLM, C ;

KJEMS, JK ;

BAUMANN, J ;

HUFNAGL, J .

PHYSICAL REVIEW LETTERS, 1988, 60 (07) :615-618

[2] THE SUPERCONDUCTING PHASES OF UPT3 UNDER PRESSURE [J].

BEHNIA, K ;

TAILLEFER, L ;

FLOUQUET, J .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) :5200-5202

[3] PHASE-DIAGRAM OF THE HEAVY-FERMION SUPERCONDUCTOR UPT3 [J].

BLOUNT, EI ;

VARMA, CM ;

AEPPLI, G .

PHYSICAL REVIEW LETTERS, 1990, 64 (25) :3074-3077

[4] PRESSURE-DEPENDENCE OF SPIN-FLUCTUATION EFFECTS IN THE SPECIFIC-HEAT OF THE HEAVY-FERMION SUPERCONDUCTOR UPT3 [J].

BRODALE, GE ;

FISHER, RA ;

PHILLIPS, NE ;

STEWART, GR ;

GIORGI, AL .

PHYSICAL REVIEW LETTERS, 1986, 57 (02) :234-237

[5] STRAIN-ORDER-PARAMETER COUPLING AND PHASE-DIAGRAMS IN SUPERCONDUCTING UPT3 [J].

BRULS, G ;

WEBER, D ;

WOLF, B ;

THALMEIER, P ;

LUTHI, B ;

DE VISSER, A ;

MENOVSKY, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (18) :2294-2297

[6] THERMAL-EXPANSION AND ELASTIC-CONSTANTS OF SINGLE-CRYSTALLINE UPT3 [J].

DEVISSER, A ;

FRANSE, JJM ;

MENOVSKY, A .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1985, 15 (03) :L53-L58

[7]

GREITER M, IN PRESS UNIAXIAL ST

[8]

GREITER M, 1990, 6TH INT C VAL FLUCT

[9]

GREITER M, 1987, THESIS U CAMBRIDGE

[10] SUPERCONDUCTING PHASE-DIAGRAM OF UPT3 STUDIED BY THERMAL-EXPANSION AND SPECIFIC-HEAT [J].

HASSELBACH, K ;

LACERDA, A ;

BEHNIA, K ;

TAILLEFER, L ;

FLOUQUET, J ;

DEVISSER, A .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1990, 81 (5-6) :299-315

← 1 2 3 →