Properties of superconducting microbridges in the pure limit

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:6927703

Kulik, I O; Omel'yanchuk, A N

An exact solution of Eilenberger's equations for a superconducting microbridge in the limit avery-much-less-thanxi/sub 0/, avery-much-less-thanl is given (a is the radius of the constriction between the superconductors, l is the mean free path and xi/sub 0/ is the coherence length). The current is independent of the ratio between l xi/sub 0/ and is expressed in terms of the contact resistance in the normal state. When T=0, the magnitude of the critical current exceeds the critical current of the tunnel contact with the same resistance, by a factor of two.

• Research Organization: Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
• OSTI ID: 6927703
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 3:7; ISSN SJLPD
• Country of Publication: United States
• Language: English

Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOUNDARY CONDITIONS
COHERENCE LENGTH
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FUNCTIONS
GREEN FUNCTION
ORDER PARAMETERS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY