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 language | English (US) |
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Journal | IEEE Transactions on Magnetics |
Volume | MAG-23 |
Issue number | 2 |
State | Published - Jan 1 1987 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering