Document Type

Article

Publication Date

1994

Department

Physics & Computer Science

Abstract

The oscillations of two resistively coupled Josephson junctions biased only by a single dc current source are shown to lock harmonically in a 1:2 mode over a significant range of bias current, even when the junctions are identical. The dependence of this locking on both junction and coupling parameters is examined, and it is found that, for this particular two-junction configuration, 1:1 locking can never occur, and also that a minimum coupling coefficient is needed to support harmonic locking. Some issues related to subharmonic locking are also discussed.

Comments

This article was originally published in Journal of Applied Physics, 75(6): 3668-3673. © 1994 American Institute of Physics

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