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Vortex lattices in strong type-II superconducting two-dimensional strips

J. J. Palacios

cond-mat.supr-conarXiv:cond-mat/9710042

Abstract

We show how to calculate semi-analytically the dense vortex state in strong type-II superconducting nanostructures. For the specific case of a strip, we find vortex lattice solutions which also incorporate surface superconductivity. We calculate the energy cost to displace individual vortex rows parallel to the surfaces and find that this energy oscillates with the magnetic field. Remarkably, we also find that, at a critical field H* below Hc2, this ''shear'' energy becomes strictly zero for the surface rows due to an unexpected mismatch with the bulk lattice.

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