Unusual angular and temperature dependence of the upper critical field in UPt/sub 3/

Journal Article · Mon Sep 08 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.1259· OSTI ID:5063840

Shivaram, B S; Rosenbaum, T F; Hinks, D G

We report measurements of the upper critical field, H/sub c//sub 2/, inclined at various angles with respect to the c axis in the heavy-fermion superconductor UPt/sub 3/. The angular anisotropy observed near T/sub c/ = 0.53/sup 0/K cannot be explained quantitatively by presently available theoretical expressions which consider either isotropic or anisotropic pairing. In addition, we find that the anisotropy apparently disappears at T--200 mK, only to reemerge at lower temperatures with an opposite sense. We have also studied H/sub c//sub 2/ in the basal plane of this hexa- gonal crystal and find no angular dependence within the limits of our measurements.

• Research Organization: The James Franck Institute and the Department of Physics, The University of Chicago, Chicago, Illinois 60637
• OSTI ID: 5063840
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:10; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOYS
ANISOTROPY
CRITICAL FIELD
CRYSTALS
DATA
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HEAVY LEPTONS
INFORMATION
INTERMETALLIC COMPOUNDS
LEPTONS
MAGNETIC FIELDS
MONOCRYSTALS
NUMERICAL DATA
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
POSTULATED PARTICLES
SPACE DEPENDENCE
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
URANIUM ALLOYS
VARIATIONS