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Exact Solution for the Critical State in Thin Superconductor Strips with Field Dependent or Anisotropic Pinning

Grigorii P. Mikitik·Ernst Helmut Brandt
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Abstract

An exact analytical solution is given for the critical state problem in long thin superconductor strips in a perpendicular magnetic field, when the critical current density j_c(B) depends on the local induction B according to a simple three-parameter model. This model describes both isotropic superconductors with this j_c(B) dependence, but also superconductors with anisotropic pinning described by a dependence j_c(theta) where theta is the tilt angle of the flux lines away from the normal to the specimen plane.

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Grigorii P. Mikitik, Ernst Helmut Brandt. 2000-03-24. Exact Solution for the Critical State in Thin Superconductor Strips with Field Dependent or Anisotropic Pinning. https://doi.org/10.1103/physrevb.62.6812

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