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Meissner-London currents in superconductors with rectangular cross section

Ernst Helmut Brandt·Grigorii P. Mikitik
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Abstract

Exact analytic solutions are presented for the magnetic moment and screening currents in the Meissner state of superconductor strips with rectangular cross section in a perpendicular magnetic field and/or with transport current. The extension to finite London penetration is achieved by an elegant numerical method which works also for disks. The surface current in the specimen corners diverges as l^(-1/3) where l is the distance from the corner. This enhancement reduces the barrier for vortex penetration and should increase the nonlinear Meissner effect in d-wave superconductors.

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Ernst Helmut Brandt, Grigorii P. Mikitik. 2000-08-17. Meissner-London currents in superconductors with rectangular cross section. https://doi.org/10.1103/physrevlett.85.4164

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