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arXiv · 1007.1849

Giant vortices, vortex rings and reentrant behavior in type-1.5 superconductors

V. H. Dao·L. F. Chibotaru·T. Nishio·V. V. Moshchalkov
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Abstract

We predict that in a bulk type-1.5 superconductor the competing magnetic responses of the two components of the order parameter can result in a vortex interaction that generates group-stabilized giant vortices and unusual vortex rings in the absence of any extrinsic pinning or confinement mechanism. We also find within the Ginzburg-Landau theory a rich phase diagram with successions of behaviors like type-1 -> type-1.5 -> type-2 -> type-1.5 as temperature decreases.

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V. H. Dao, L. F. Chibotaru, T. Nishio, V. V. Moshchalkov. 2010-07-12. Giant vortices, vortex rings and reentrant behavior in type-1.5 superconductors. https://doi.org/10.1103/physrevb.83.020503

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