Penetration of spatially nonuniform alternating magnetic field into type-II superconductors

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1 Scopus citations


Spatially nonuniform fluctuations of external magnetic field are typically present in applications of superconductors as magnetic bearings and shields. We use the Bean critical-state model to analyze penetration of such alternating fields into type-II superconductors. Simple asymptotic solutions are found for infinite slab configuration and low penetration depth of the magnetic field. To calculate AC losses, we use a vector potential formulation. The solutions obtained are tested by numerical simulations, based on a variational reformulation of the critical-state problem, and by experiments. A BSCCO superconducting bulk specimen with power law voltage-current characteristic was used in experiments.

Original languageEnglish
Pages (from-to)645-646
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Issue number1-4
StatePublished - 1 Aug 2004
EventProceedings of the International Conference on Materials - Rio de Janeiro, Brazil
Duration: 25 May 200330 May 2003


  • Bean model
  • Spatially nonuniform fluctuations
  • Type-II superconductors

ASJC Scopus subject areas

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


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