Model of real superconducting point contacts

Journal Article · Fri Sep 01 04:00:00 EDT 1978 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:6337018

Divin, Y Y; Nad', F Y

A model of real superconducting point contacts is proposed based on the experimental studies of superconducting point contact properties in the resistance range 10/sup 5/--10/sup -1/ ..cap omega.. and on a comparison with the structural properties of the contacts. According to this model, the contact is a parallel connection of a tunnel junction whose conductivity is due to quasiparticles, and a microshort jumper with Josephson properties. Within the framework of the proposed model, good agreement is obtained between the experimental and theoretical temperature dependences of the contact's critical current, and the observed dependence of the contact characteristic voltage V/sub C/ on the contact resistance is explained.

• Research Organization: Institute of Radio Engineering and Electronics, Academy of Sciences of the USSR
• OSTI ID: 6337018
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 4:9; ISSN SJLPD
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CONTACTS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
JOSEPHSON JUNCTIONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SUPERCONDUCTING JUNCTIONS
TEMPERATURE DEPENDENCE
TUNNEL EFFECT
ULTRALOW TEMPERATURE