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

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

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    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

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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