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arXiv · cond-mat/0407599

Transition to a Superconductor with Insulating Cavities

Mauro M. Doria·Antonio R. de C. Romaguera
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Abstract

An extreme type II superconductor with internal insulating regions, namely cavities, is studied here. We find that the cavity-bearing superconductor has lower energy than the defect-free superconductor above a critical magnetic induction $B^*$ for insulating cavities but not for metallic ones. Using a numerical approach for the Ginzburg-Landau theory we compute and compare free energy densities for several cavity radii and at least for two cavity densities, assuming a cubic lattice of spherical cavities.

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Mauro M. Doria, Antonio R. de C. Romaguera. 2004-07-22. Transition to a Superconductor with Insulating Cavities. https://doi.org/10.1209/epl%2Fi2004-10072-2

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