Article

Properties of superconducting microbridges in the pure limit

I. O. KulikPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSRA. N. Omel’yanchukPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR

Soviet Journal of Low Temperature Physicsjournal1977en

ABI

Abstract

An exact solution of Eilenberger's equations for a superconducting microbridge in the limit a ≪ ξ0, a ≪ l is given (a is the radius of the constriction between the superconductors, l is the mean free path and ξ0 is the coherence length). The current is independent of the ratio between l and ξ0 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.

Topics

Physics of Superconductivity and Magnetism Surface and Thin Film Phenomena Superconducting and THz Device Technology

Identifiers

DOI: 10.1063/10.0029534

Citations and references

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