Soliton-induced critical current oscillations in two-band superconducting bridges

P. M. Marychev and D. Yu. Vodolazov
Phys. Rev. B 97, 104505 – Published 13 March 2018

Abstract

Using time-dependent Ginzburg-Landau theory we find oscillations of critical current density jc as a function of the length L of the bridge formed from a two-band superconductor. We explain this effect by the appearance of the phase solitons in the bridge at j<jc, whose number changes with a change of L. In the case of sufficiently strong interband coupling, oscillations of jc disappear.

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  • Received 24 November 2017
  • Revised 25 January 2018

DOI:https://doi.org/10.1103/PhysRevB.97.104505

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

P. M. Marychev1,* and D. Yu. Vodolazov1,2

  • 1Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, 603950 Russia
  • 2Lobachevsky State University of Nizhny Novgorod, 23 Gagarina, Nizhny Novgorod, Russian Federation

  • *Corresponding author: marychevpm@ipmras.ru

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Issue

Vol. 97, Iss. 10 — 1 March 2018

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