Vortex States Induced by Proximity Effect in Hybrid Ferromagnet-Superconductor Systems

Details Vortex States Induced by Proximity Effect in Hybrid Ferromagnet-Superconductor Systems Vortex States Induced by Proximity Effect in Hybrid Ferromagnet-Superconductor Systems

2007-06-18

arxiv.org/abs/0706.2584v1

Phys. Rev. B 76, 184519 (2007)

Physics

Condensed Matter

Superconductivity

7 pages, 6 figures

Scientific paper

10.1103/PhysRevB.76.184519

We consider superconductivity nucleation in multiply connected mesoscopic samples such as thin-walled cylinders or rings placed in electrical contact with a ferromagnet. The superconducting critical temperature and order parameter structure are studied on the basis of linearized Usadel equations. We suggest a mechanism of switching between the superconducting states with different vorticities caused by the exchange field and associated with the oscillatory behavior of the Cooper pair wave function in a ferromagnet.

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