Anisotropic critical fields in superconducting superlattices

Journal Article · Tue Nov 01 04:00:00 EST 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.28.5037· OSTI ID:5370032

Banerjee, I; Yang, Q S; Falco, C M; Schuller, I K

The temperature and angular dependence of critical fields (H/sub c/) have been studied as a function of layer thickness for superconducting Nb/Cu superlattices. For layer thicknesses between 100 and 300 A, dimensional crossover has been observed in the temperature dependence of H/sub c/. Associated with the crossover we find a change in the angular dependence of H/sub c/ to that given by the effective-mass theory. This is the first time that a relationship has been found between dimensional crossover observed in the temperature dependence and that in the angular dependence of critical fields.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 5370032
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 28:9; ISSN PRBMD
• 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
ANISOTROPY
COPPER
CRITICAL FIELD
EFFECTIVE MASS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
MAGNETIC FIELDS
MASS
METALS
NIOBIUM
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SUPERLATTICES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
TYPE-II SUPERCONDUCTORS