Propagation and generation of josephson radiation in superconductor/insulator superlattices alternately containing two different barriers

S. N. Song, P. R. Auvil, J. B. Ketterson

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The sine-Gordon equation for a Josephson coupled superconductor/insulator superlattice is derived using a Lagrangian formalism. This equation has essentially the same form as that given eariler by Kulik for a single Josephson junction but with different parameters. For the case of S/I superlattices alternately containing two different barrier thicknesses, the behavior of the propagation and generation of the Josephson radiation is governed by two coupled sine-Gordon equations, which results in two photon branches separated by a frequency gap. Some potential applications of these structures, involving increased outputs of the Josephson radiation and two band filters, are discussed.

Original languageEnglish (US)
Pages (from-to)1154-1157
Number of pages4
JournalIEEE Transactions on Magnetics
Volume23
Issue number2
DOIs
StatePublished - Mar 1987

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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