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

Shoichi Nagata, H. C. Yang, D. K. Finnemore

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Abstract

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, Jc, 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, λJ and find Jc to be proportional to (1-T/Tc)2 in the range where λJ is comparable to the junction width, W.

Original languageEnglish
Pages (from-to)5798-5801
Number of pages4
JournalJournal of Applied Physics
Volume53
Issue number8
DOIs
Publication statusPublished - 1982 Dec 1

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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