Superheated and Dissipative Ginzburg-Landau Superconductors

Details Superheated and Dissipative Ginzburg-Landau Superconductors Superheated and Dissipative Ginzburg-Landau Superconductors

1999-07-15

arxiv.org/abs/cond-mat/9907213v1

Physics

Condensed Matter

Superconductivity

dissertation, 87 pages, 29 figures, latex with amstex, full figures at http://www.phys.virginia.edu/~ajd2m/

Scientific paper

We study two superconducting systems using the Landau-Ginzburg equations. The first is a superconducting half-space with an applied magnetic field parallel to the surface. We calculate the maximum applied field that still supports superconductivity in the material by solving the Landau-Ginzburg equations analytically in asymptotic regimes of the Landau-Ginzburg parameter, kappa. These results are then checked against numerical studies. The other system is a thin, current-carrying strip. Here we do the first systematic study of nucleation of superconductivity in a normal strip and of the motion of a normal-superconducting interface in the presence of a current. This dissipative system requires solving the time-dependent Landau-Ginzburg equations analytically and numerically.

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