SUPERCONDUCTING PHASE-DIAGRAM OF UPT3

被引：1

作者：

ADENWALLA, S ^{[1
]}

KETTERSON, JB ^{[1
]}

LIN, SW ^{[1
]}

LEVY, M ^{[1
]}

SARMA, BK ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT PHYS,MILWAUKEE,WI 53201

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1992年 / 181卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0925-8388(92)90306-T

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present ultrasonic velocity data for the heavy fermion superconductor UPt3. UPt3 is a strong candidate for unconventional superconductivity. Conclusive evidence for this comes from the observation of multiple superconducting phases. Earlier measurements of the phase diagram relied on a variety of different measurements on different samples. The phase boundaries obtained agreed qualitatively, but the important region near the H(c2) curve remained an open question. Our velocity measurements present the first complete phase diagram of UPt3 based on a single measurement on a single sample. The sharp velocity signatures allow us to trace these signatures to within the width of the normal-superconducting transition. Our results indicate that there is a tetracritical point on the H(c2) curve.

引用

页码：153 / 159

页数：7

共 22 条

[1] PHASE-DIAGRAM OF UPT3 FROM ULTRASONIC VELOCITY-MEASUREMENTS
ADENWALLA, S
LIN, SW
RAN, QZ
ZHAO, Z
KETTERSON, JB
SAULS, JA
TAILLEFER, L
HINKS, DG
LEVY, M
SARMA, BK
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (18) : 2298 - 2301
[2] ADENWALLA S, IN PRESS
[3] ULTRASONIC-ATTENUATION IN UPT3
BISHOP, DJ
VARMA, CM
BATLOGG, B
BUCHER, E
FISK, Z
SMITH, JL
[J]. PHYSICAL REVIEW LETTERS, 1984, 53 (10) : 1009 - 1011
[4] PHASE-DIAGRAM OF THE HEAVY-FERMION SUPERCONDUCTOR UPT3
BLOUNT, EI
VARMA, CM
AEPPLI, G
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (25) : 3074 - 3077
[5] STRAIN-ORDER-PARAMETER COUPLING AND PHASE-DIAGRAMS IN SUPERCONDUCTING UPT3
BRULS, G
WEBER, D
WOLF, B
THALMEIER, P
LUTHI, B
DE VISSER, A
MENOVSKY, A
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (18) : 2294 - 2297
[6] THERMAL-EXPANSION AND ELASTIC-CONSTANTS OF SINGLE-CRYSTALLINE UPT3
DEVISSER, A
FRANSE, JJM
MENOVSKY, A
[J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1985, 15 (03): : L53 - L58
[7] FIELD-DEPENDENT SPECIFIC-HEAT AND MULTIPLE SUPERCONDUCTING PHASES IN UPT3
ELLMAN, B
YANG, J
ROSENBAUM, TF
BUCHER, E
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (13) : 1569 - 1572
[8] SPECIFIC-HEAT OF UPT3 - EVIDENCE FOR UNCONVENTIONAL SUPERCONDUCTIVITY
FISHER, RA
KIM, S
WOODFIELD, BF
PHILLIPS, NE
TAILLEFER, L
HASSELBACH, K
FLOUQUET, J
GIORGI, AL
SMITH, JL
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (12) : 1411 - 1414
[9] SUPERCONDUCTING PHASE-DIAGRAM OF UPT3 STUDIED BY THERMAL-EXPANSION AND SPECIFIC-HEAT
HASSELBACH, K
LACERDA, A
BEHNIA, K
TAILLEFER, L
FLOUQUET, J
DEVISSER, A
[J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 1990, 81 (5-6) : 299 - 315
[10] CRITICAL-POINT IN THE SUPERCONDUCTING PHASE-DIAGRAM OF UPT3
HASSELBACH, K
TAILLEFER, L
FLOUQUET, J
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (01) : 93 - 96

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