A Model for Flux Pinning in Superconductors

  • John R. Clem


In order to describe some of the important aspects of the interaction of fluxoids with surfaces and large defects in type II superconductors, we consider here an idealized flux-pinning model which treats bulk pinning as arising from a sequence of surface pinning events. To develop this model, we first discuss surface pinning in some detail. We then introduce the model, derive an expression for the critical current density, and, finally, discuss some of its implications.


Critical Current Density Free Energy Barrier Interior Edge Critical State Model Flux Pinning 
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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • John R. Clem
    • 1
  1. 1.Ames Laboratory— USAEC and Department of PhysicsIowa State UniversityAmesUSA

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