Magnetization and transport currents in thin superconducting films

E. Zeldov; John R. Clem; M. McElfresh; M. Darwin

doi:10.1103/PhysRevB.49.9802

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Magnetization and transport currents in thin superconducting films

E. Zeldov, John R. Clem, M. McElfresh, M. Darwin

DOI 10.1103/PhysRevB.49.9802 · Physical Review B

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Abstract

The critical-state behavior of an infinitely long type-II superconducting thin-film strip is theoretically analyzed for an arbitrary sequence of applied transport currents and perpendicular magnetic fields. Included are solutions for applied field only, transport current only, transport current applied to a sample initially in the remanent critical state, ac applied field, ac transport current, and simultaneously applied field and transport current. The results are compared side by side with corresponding solutions for the more famililar slab geometry; there are striking differences in behavior.