Dissociation of vortex stacks into fractional-flux vortices

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We discuss the zero field superconducting phase transition in a finite system of magnetically coupled superconducting layers. Transverse screening is modified by the presence of other layers resulting in topological excitations with fractional flux. Vortex stacks trapping a full flux and present at any finite temperature undergo an evaporation transition which corresponds to the depairing of fractional-flux vortices in individual layers. We propose an experiment with a bi-layer system allowing us to identify the dissociation of bound vortex molecules.
4 pages, 1 figure; revised version, to appear in Phys. Rev. Lett

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/24731

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0408633
 http://arxiv.org/abs/cond-mat/0408633
 Phys. Rev. Lett. 94, 097001 (2005)
 doi:10.1103/PhysRevLett.94.097001

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