Unusual angular and temperature dependence of the upper critical field in UPt/sub 3/
We report measurements of the upper critical field, H/sub c2/, 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/ = 0.53K 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 /approximately/200 mK, only to reemerge at lower temperatures with an opposite sense. We have also studied H/sub c2/ in the basal lane of this hexagonal crystal and find no angular dependence within the limits of our measurements. 15 refs., 4 figs., 1 tab.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6452374
- Report Number(s):
- ANL/PPRNT-89-130; ON: DE89008425
- Country of Publication:
- United States
- Language:
- English
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Mon Sep 08 00:00:00 EDT 1986
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Sat Dec 31 23:00:00 EST 1983
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OSTI ID:6762478
Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOYS
ANISOTROPY
CRITICAL FIELD
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEXAGONAL LATTICES
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM BASE ALLOYS
PLATINUM METAL ALLOYS
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
URANIUM ALLOYS
360102 -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOYS
ANISOTROPY
CRITICAL FIELD
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEXAGONAL LATTICES
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM BASE ALLOYS
PLATINUM METAL ALLOYS
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
URANIUM ALLOYS