Interaction of a fluxon with a local inhomogeneity in a long Josephson junction

doi:10.1016/0375-9601(88)90316-7

Physics Letters A

Volume 129, Issues 8–9, 13 June 1988, Pages 443-448

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Abstract

The interaction of a fluxon with a local defect in a damped dc driven long Josephson junction (LJJ) is analyzed by means of perturbation theory. The defect is a combination of a micro-short or micro-resistor with a dissipative micro-inhomogeneity. Threshold (maximum) values of the bias current density admitting capture of a fluxon by a combined defect are calculated for various practically important cases. The dynamics of a fluxon moving through a lattice of dissipative defects is studied. The energy emitted by a fluxon moving past a local defect is calculated. It is demonstrated that the latter effect can be employed to design a Josephson micro-wave generator based upon a LJJ with an installed lattice of dissipative defects. That generator must be more effective than the one proposed earlier by McLaughlin and Scott.

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Interaction of a fluxon with a local inhomogeneity in a long Josephson junction

Abstract

Phys. Lett. A

Phys. Lett. A

Physica D

Phys. Lett. A

Physica D

Physics and applications of the Josephson effect

Introduction to dynamics of Josephson junctions

Phys. Rev. A

Solid State Commun.