Nucleation of superconductivity in an overcooled normal domain

Boris Ya Shapiro, Mark Ghinovker, Irina Shapiro, Gzegorz Jung

Research output: Contribution to journalArticlepeer-review

Abstract

Relaxation of the overcooled normal domain with magnetic flux in type-I and type-II superconductors is considered. Two regimes of dynamics, depending on the domain size and the amount of trapped magnetic flux have been found: decay into single vortices and explosive nucleation of the topological vortices and antivortices. Small overcooled normal spots in type-II superconductors decay into a cluster of Abrikosov vortices while the restoration of superconductivity in large domains with weak magnetic fields leads to the creation of a long-living vortex-antivortex mixed state. In the presence of pinning centers in the sample this state can be frozen and persist indefinitely. Application of a week external magnetic field extracts antivortices from the sample thus causing net increase of the magnetic penetrating into the sample.

Original languageEnglish
Pages (from-to)765-766
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART I
DOIs
StatePublished - 1 Jan 2000

Keywords

  • Breaking symmetry
  • Cosmic strings
  • Flux lines
  • Vortex-antivortex liquid

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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