Josephson effects in ultrashort mean-free-path superconductors

T. W. Lee, Charles M Falco

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Abstract

We show that it is possible to observe Josephson effects at temperatures up to 17 K in a superconductor with intrinsic mean free path <20 Å, contrary to what is generally thought possible. The temperature dependence of the critical current in Nb3Sn microbridges near Tc is consistent with predictions of the one-dimensional Ginzburg-Landau (ODGL) theory, while microwave-induced steps in the current-voltage characteristics are in excellent agreement with the resistively shunted junction (RSJ) model.

Original languageEnglish (US)
Pages (from-to)567-569
Number of pages3
JournalApplied Physics Letters
Volume38
Issue number7
DOIs
Publication statusPublished - 1981
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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