Phase-slip dynamics and excess current in long superconducting bridges

Journal Article · Fri Aug 01 04:00:00 EDT 1980 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:6418024

Kulik, I O; Omel'yanchuk, A N; Khlus, V A

Dynamic two-fluid equations are formulated which describe the nonlinear penetration of a longitudinal electric field into a superconductor. Some properties of phase-slip centers in long channels are examined. The occurrence of a phase-slip center, localized in the center of a superconducting bridge which leads to the jump condition in the hysteretic current--phase relation I(phi), is analyzed in detail. The dependence of the excess current on the bridge length is analyzed. For limitingly long lengths (which are, nevertheless, small in comparison with the penetration depth) the excess current is 5/8 of the critical current.

• Research Organization: Physicotechnical Institute of Low Temperatures, Academy of Sciences of the USSR, Khar'kov
• OSTI ID: 6418024
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 6:8; ISSN SJLPD
• Country of Publication: United States
• Language: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISTURBANCES
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
EQUATIONS
LANDAU LIQUID HELIUM THEORY
NONLINEAR PROBLEMS
ORDER PARAMETERS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
SUPERCONDUCTORS