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Dynamic pinning model of electrical dissipation in the superconducting surface sheath

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Abstract

The dynamic pinning model of Yamafuji and Irie is adapted to the problem of electrical dissipation in the superconductive surface sheath. The free energy of the surface flux-spot lattice and its shear modulus—quantities required by the model—are calculated. The dc current-voltage characteristics of thick, Pb-In alloy films are analyzed in terms of an excess currentI p due to pinning. The observed dependence ofI p upon magnetic field is in good accord with the predictions of the model; the variations with temperature and alloy composition are made plausible as well.

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Authors and Affiliations

  1. Physics Department, Wesleyan University, Middletown, Connecticut

    J. U. Trefny

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  1. J. U. Trefny
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Work supported in part by Research Corporation.

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Trefny, J.U. Dynamic pinning model of electrical dissipation in the superconducting surface sheath. J Low Temp Phys 26, 545–554 (1977). https://doi.org/10.1007/BF00655427

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  • DOI: https://doi.org/10.1007/BF00655427

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