CONSTRAINTS ON THE STRAIN-DEPENDENCE OF THE UPT3 SUPERCONDUCTING TRANSITIONS FROM LONGITUDINAL-ULTRASOUND MEASUREMENTS

被引：13

作者：

BULLOCK, GL ^{[1
]}

SHIVARAM, BS ^{[1
]}

HINKS, DG ^{[1
]}

机构：

[1] ARGONNE NATL LABS,DIV MAT SCI & TECHNOL,ARGONNE,IL 60639

来源：

EUROPHYSICS LETTERS | 1993年 / 21卷 / 03期

关键词：

D O I：

10.1209/0295-5075/21/3/017

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present measurements of longitudinal ultrasound in UPt3 along both the a- and c-axis in the region of the two superconducting transitions, T(c)+ and T(c)*. Using expressions from a model for the double superconducting transition, our measurements constrain the strain-dependences of a number of parameters. In particular, these constraints imply that the observed anisotropy in the stress-dependence of T(c)* results from anisotropy in the elastic compliance tensor, rather than anisotropy of the superconducting order parameter. We also report an anomalous lattice softening below 100 mK.

引用

页码：357 / 362

页数：6

共 28 条

[1] PHASE-DIAGRAM OF UPT3 FROM ULTRASONIC VELOCITY-MEASUREMENTS [J].

ADENWALLA, S ;

LIN, SW ;

RAN, QZ ;

ZHAO, Z ;

KETTERSON, JB ;

SAULS, JA ;

TAILLEFER, L ;

HINKS, DG ;

LEVY, M ;

SARMA, BK .

PHYSICAL REVIEW LETTERS, 1990, 65 (18) :2298-2301

[2] UNRENORMALIZED ULTRASOUND ATTENUATION IN THE HEAVY-FERMION STATE [J].

BATLOGG, B ;

BISHOP, DJ ;

GOLDING, B ;

BUCHER, E ;

HUFNAGL, J ;

FISK, Z ;

SMITH, JL ;

OTT, HR .

PHYSICAL REVIEW B, 1986, 33 (08) :5906-5909

[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]

BOLEF DI, 1971, PHYS ACOUSTICS, V8, P95

[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] SPECIFIC-HEAT OF UPT3 - EVIDENCE FOR UNCONVENTIONAL SUPERCONDUCTIVITY [J].

FISHER, RA ;

KIM, S ;

WOODFIELD, BF ;

PHILLIPS, NE ;

TAILLEFER, L ;

HASSELBACH, K ;

FLOUQUET, J ;

GIORGI, AL ;

SMITH, JL .

PHYSICAL REVIEW LETTERS, 1989, 62 (12) :1411-1414

[8] CRITICAL-POINT IN THE SUPERCONDUCTING PHASE-DIAGRAM OF UPT3 [J].

HASSELBACH, K ;

TAILLEFER, L ;

FLOUQUET, J .

PHYSICAL REVIEW LETTERS, 1989, 63 (01) :93-96

[9] BROKEN SYMMETRY IN AN UNCONVENTIONAL SUPERCONDUCTOR - A MODEL FOR THE DOUBLE TRANSITION IN UPT3 [J].

HESS, DW ;

TOKUYASU, TA ;

SAULS, JA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (43) :8135-8145

[10] UNIAXIAL-STRESS ANISOTROPY OF THE DOUBLE SUPERCONDUCTING TRANSITION IN UPT3 [J].

JIN, DS ;

CARTER, SA ;

ELLMAN, B ;

ROSENBAUM, TF ;

HINKS, DG .

PHYSICAL REVIEW LETTERS, 1992, 68 (10) :1597-1600

← 1 2 3 →