Effect of pinning on the response of superconducting strips to an external pulsed current

G. Berdiyorov, K. Harrabi, J. P. Maneval, F. M. Peeters

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15 Citations (Scopus)

Abstract

Using the anisotropic time-dependent Ginzburg-Landau theory we study the effect of ordered and disordered pinning on the time response of superconducting strips to an external current that switched on abruptly. The pinning centers result in a considerable delay of the response time of the system to such abrupt switching on of the current, whereas the output voltage is always larger when pinning is present. The resistive state in both cases are characterized either by dynamically stable phase-slip centers/lines or expanding in-time hot-spots, which are the main mechanisms for dissipation in current-carrying superconductors. We find that hot-spots are always initiated by the phase-slip state. However, the range of the applied current for the phase-slip state increases significantly when pinning is introduced. Qualitative changes are observed in the dynamics of the superconducting condensate in the presence of pinning.

Original languageEnglish
Article number025004
JournalSuperconductor Science and Technology
Volume28
Issue number2
DOIs
Publication statusPublished - 1 Feb 2015

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Keywords

  • hot spot
  • phase slip
  • superconductor

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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