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Article
Magnetic Field Delocalization and Flux Inversion in Fractional Vortices in Two-Component Superconductors
Physics Review Letters
  • Egor Babaev, University of Massachusetts - Amherst
  • Juha Jaykka
  • Martain Speight
Publication Date
2009
Abstract
We demonstrate that, in contrast with the single-component Abrikosov vortex, in two-component superconductors vortex solutions with an exponentially screened magnetic field exist only in exceptional cases: in the case of vortices carrying an integer number of flux quanta and in a special parameter limit for half-quantum vortices. For all other parameters, the vortex solutions have a delocalized magnetic field with a slowly decaying tail. Furthermore, we demonstrate a new effect which is generic in two-component systems but has no counterpart in single-component systems: on exactly half of the parameter space of the U(1)×U(1) Ginzburg-Landau model, the magnetic field of a generic fractional vortex inverts its direction at a certain distance from the vortex core.
Comments
This is the prepublished version harvested from ArXiv. The published version is located at http://prl.aps.org/abstract/PRL/v103/i23/e237002
Citation Information
Egor Babaev, Juha Jaykka and Martain Speight. "Magnetic Field Delocalization and Flux Inversion in Fractional Vortices in Two-Component Superconductors" Physics Review Letters Vol. 103 Iss. 23 (2009)
Available at: http://works.bepress.com/egor_babaev/3/