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Vortices in a Josephson junction sandwiched between two superconducting waveguides

  • Metals and Superconductors
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Abstract

For a Josephson junction magnetically coupled to the superconducting waveguides enclosing it, solutions to the equation for the difference of the Cooper pair phases over the Josephson junction are found and the corresponding magnetic field values are calculated. Two gaps imposing an upper limit for the vortex velocity are found for free vortices (moving without dissipation). Existence conditions are found for fast vortices in the two high-velocity allowed regions. The dependence of the transport current on vortex velocity is established in cases where the current flows through the Josephson junction only or through the entire structure. A reverse current phenomenon is discovered in which vortices inside allowed velocity regions move opposite to the usual direction.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    A. S. Malishevskii, V. P. Silin, S. A. Uryupin & S. G. Uspenskii

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  1. A. S. Malishevskii
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  2. V. P. Silin
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  3. S. A. Uryupin
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  4. S. G. Uspenskii
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__________

Translated from Fizika Tverdogo Tela, Vol. 46, No. 9, 2004, pp. 1544–1556.

Original Russian Text Copyright © 2004 by Malishevski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Silin, Uryupin, Uspenski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\).

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Malishevskii, A.S., Silin, V.P., Uryupin, S.A. et al. Vortices in a Josephson junction sandwiched between two superconducting waveguides. Phys. Solid State 46, 1591–1603 (2004). https://doi.org/10.1134/1.1799172

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  • DOI: https://doi.org/10.1134/1.1799172

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