Critical magnetic fields in layered thin-film vanadium--carbon structures

Journal Article · Sun Aug 01 04:00:00 EDT 1976 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:7209271

Teplov, A A

The critical magnetic fields H/sub c perpendicular/ and H/sub c parallel/ of superconducting layered thin-film C- (V-C-V) -C samples, in which a nonmonotonic dependence of the critical temperature T/sub c/ and resistivity rho on the thickness of the intermediate carbon layer was previously observed, are investigated. It is found that vertical-bardH/sub c perpendicular//dT vertical-bar and vertical-bardH/sub c parallel//sup 2//dTvertical-bar also depend near T nonmonotonically on the thickness of the layer. Estimates of the electron density of the states derived on the basis of data on vertical-bardH/sub c perpendicular//dT vertical-bar and data on the residual resistivity agree qualitatively with the assumption that the nonmonotonic dependence of T/sub c/ and rho on the thickness of the carbon layer is due to variation of the electron density of the states.

• OSTI ID: 7209271
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 44:2; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656101 -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CARBON ADDITIONS
CRITICAL FIELD
ELECTRONIC STRUCTURE
FILMS
MAGNETIC FIELDS
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VANADIUM ALLOYS