Closed Abrikosov Vortices in a Superconducting Cylinder

V. A. Kozlov; A. V. Samokhvalov

doi:10.1016/0921-4534(93)90764-h

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arXiv · cond-mat/9305035

Closed Abrikosov Vortices in a Superconducting Cylinder

V. A. Kozlov·A. V. Samokhvalov

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Abstract

The new type of solutions of the London equation for type-II superconductors is obtained to describe the ring-shaped (toroidal) Abrikosov vortices. The specific feature of these solutions is the self-consistent localization of both the supercurrent and the magnetic field, enabling one to construct compact magnetic structures inside a superconductor. The torus vortex contraction caused by the vortex instability leads to the destruction of the Cooper pairing and the formation of a normal electron stream in the vicinity of the torus axis. The thermodynamic condition for the excitation of a small closed vortex by a bunch of charged particles contains the fine-structure constant as a determining parameter.

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V. A. Kozlov, A. V. Samokhvalov. 1993-05-27. Closed Abrikosov Vortices in a Superconducting Cylinder. https://doi.org/10.1016/0921-4534(93)90764-h

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