PROPAGATION AND GENERATION OF JOSEPHSON RADIATION IN SUPERCONDUCTOR/INSULATOR SUPERLATTICES ALTERNATELY CONTAINING TWO DIFFERENT BARRIERS.

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The sine-Gordon equation for a Josephson coupled superconductor/insulator (S/I) superlattice is derived using a Lagrangian formalism. This equaition has essentially the same form as that given earlier by I. O Kulik (1965) for a single Josephson junction but with dfferent parameters. For the case of S/I (superconductor/insulator) 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 sepearted 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)
JournalIEEE Transactions on Magnetics
VolumeMAG-23
Issue number2
StatePublished - Jan 1 1987

ASJC Scopus subject areas

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

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