Oscillations of the critical temperature and resistance in lamellar thin-film vanadium-carbon structures

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

OSTI ID:7119040

Golyanov, V M; Mikheeva, M N

The superconducting properties of vanadium-carbon sandwiches with vanadium layers d/sub V/=100 A thick and variable thickness carbon liners are studied. The thickness of the carbon liners was varied between 0 and 100 A. The investigations are performed with samples having one, two, and five vanadium layers. The dependence of the sandwich superconducting temperature T/sub c/ on the carbon liner thickness is oscillatory, the oscillations being particularly pronounced for the samples with two layers. The first peak on the T (d/sub C/) curve (d/sub C/ is the thickness of the carbon coating) occurs at d/sub C/=3 A for single-layer samples (vanadium film with carbon coating of variable thickness). In two- and five-layer sandwiches the first peak is observed for a carbon layer thickness of 5 A. A correlation is obtained between the critical temperature and the quantities R/sub 300//R/sub n/, rho/sub 300/, and rho/sub n/ for multilayer samples.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy
• OSTI ID: 7119040
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 43:6; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
CARBON
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
LAMELLAE
LAYERS
METALS
NONMETALS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
VANADIUM