Self-field effects in superconductor-normal metal-superconductor junctions

Journal Article · Sun Aug 01 00:00:00 EDT 1982 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.331417· OSTI ID:5149956

Nagata, S; Yang, H C; Finnemore, D K

The temperature dependence of the dc Josephson critical supercurrent has been measured for square lead-zinc-lead (superconductor-normal metal-superconductor) junctions in order to make a quantitative study of self-field effects. Correction for the critical current density, J/sub c/, due to the self-field effect is made by using the linearized two-dimensional model proposed by Vaglio. We calculate the temperature dependence of the Josephson penetration depth, lambda/sub J/ and find J/sub c/ to be proportional to (1-T/T/sub c/)/sup 2/ in the range where lambda/sub J/ is comparable to the junction width, W.

• Research Organization: Ames Laboratory-USDOE and Department of Physics, Iowa State University, Ames, Iowa 50011
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5149956
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 53:8; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRIC FIELDS
ELEMENTS
JUNCTIONS
LEAD
MATHEMATICAL MODELS
METALS
PENETRATION DEPTH
SUPERCONDUCTING JUNCTIONS
TEMPERATURE DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS
ZINC