Static properties of distributed inhomogeneous Josephson junctions

Journal Article · Thu Oct 01 04:00:00 EDT 1981 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5473289

Vasenko, S; Likharev, K; Semenov, V

The process involving the entry of a vortex structure into a long Josephson junction whose parameters vary greatly but smoothly along the length of the structure is theoretically analyzed. A sine-Gordon-type equation that describes the rapid oscillations of the Josephson current along the junction is reduced with the aid of the asymptotic technique to an ''abridged'' equation that describes the slow variations of the parameters of such a vortex structure. The abridged equation admits of an analytic solution, and this allows us to find in its explicit form the critical junction current as a function of the magnetic field. The obtained results are in good agreement with the data obtained in recently performed experiments.

• Research Organization: Moscow State University
• OSTI ID: 5473289
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 54:4; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL CURRENT
CURRENTS
ELECTRIC CURRENTS
EQUATIONS
FIELD EQUATIONS
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FIELDS
OSCILLATIONS
SINE-GORDON EQUATION
SUPERCONDUCTING JUNCTIONS
VORTICES