Vortex structure in long Josephson junction with two inhomogeneities

Details Vortex structure in long Josephson junction with two inhomogeneities Vortex structure in long Josephson junction with two inhomogeneities

2006-08-15

arxiv.org/abs/cond-mat/0608322v1

Physics

Condensed Matter

Superconductivity

Presented for M2S, Dresden, July 9-14, 2006

Scientific paper

10.1016/j.physc.2007.03.404

A report of numerical experiment results on long Josephson junction with one and two rectangular inhomogeneities in the barrier layer is presented. In case of one inhomogeneity we demonstrate the existence of the asymmetric fluxon states. The disappearance of mixed fluxon-antifluxon states when the position of inhomogeneity shifted to the end of the junction is shown. In case with two inhomogeneities the change of the amplitude of Josephson current through the inhomogeneity at the end of junction makes strong effect on the stability of the fluxon states and smoothes the maximums on the dependence ``critical current - magnetic field''.

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