Semi-Meissner state and nonpairwise intervortex interactions in type-1.5 superconductors
Johan Carlström, Julien Garaud, Egor Babaev
DOI 10.1103/PhysRevB.84.134515 · Physical Review B
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Abstract
We demonstrate the existence of nonpairwise interaction forces between vortices in multicomponent and layered superconducting systems. That is, in contrast to most common models, the interaction in a group of such vortices is not a universal superposition of Coulomb or Yukawa forces. Next, we consider the properties of vortex clusters in a semi-Meissner state of type-1.5 two-component superconductors. We show that under certain conditions nonpairwise forces can contribute to the formation of very complex vortex states in type-1.5 regimes.
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