Magnetic field patterns in Josephson junctions

H. C. Yang, D. K. Finnemore

Research output: Contribution to journalArticle

Abstract

The critical currents of Pb/Ag/Pb Josephson junctions have been measured as a function of magnetic field and temperature in order to study the types of magnetic field distributions that occur in superconductor-normal metal-super-conductor (SNS) junctions. A study is made of the quantum interference regime near the critical temperature where the junction is filled with vortices and the crossover to Meissner-like behavior at low temperature occurs. Special emphasis is placed on the changes in effective area of the junction as the London and Josephson penetration depths change with temperature. A mapping of the crossover regime in the temperature-magnetic field plane is given.

Original languageEnglish
Pages (from-to)187-193
Number of pages7
JournalJournal of Low Temperature Physics
Volume64
Issue number3-4
DOIs
Publication statusPublished - 1986 Aug 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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