A Model for Flux Pinning in Superconductors
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.
KeywordsCritical Current Density Free Energy Barrier Interior Edge Critical State Model Flux Pinning
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