Fluxon dynamics in three stacked Josephson junctions

Publication: Research - peer-reviewJournal article – Annual report year: 2002

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The motion of fluxons of the same polarity in three vertically stacked Josephson junctions is studied. In this configuration the difference between exterior and interior junctions plays a more important role than in other configurations with several interior junctions. Below the Swihart velocity c/sub -/, the coupling between junctions leads to a repulsion of the fluxons with the same polarity. Above this critical velocity a fluxon will induce radiation in the neighboring junctions, leading to a bunching of the fluxons in the stacked junctions. Using the Sakai-Bodin-Pedersen model, three coupled perturbed sine-Gordon equations are numerically studied for different values of coupling, damping, and bias parameters. In a narrow range of velocities bunching occurs. Outside this interval the fluxons split and new fluxons may be created. I-V characteristics are presented
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Publication date2002
Volume66
Issue17
Pages172503
ISSN1098-0121
DOIs
StatePublished

Bibliographical note

Copyright (2002) American Physical Society

CitationsWeb of Science® Times Cited: 8

Keywords

  • Nonlinear dynamics
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