Long-Range Fluctuation-Induced Attraction of Vortices to the Surface in Layered Superconductors
- 29 January 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 76 (5) , 827-830
- https://doi.org/10.1103/physrevlett.76.827
Abstract
It is shown that in extremely anisotropic layered superconductors the interaction of vortex lines with a parallel planar surface, which for straight lines along the axis decreases exponentially over the in-plane penetration depth λ, becomes a long-range dipole-dipole attraction when the vortex line is distorted randomly. This novel long-range fluctuation-induced attraction enhances the thermal fluctuations down to depths much larger than λ and may lead to flux creep towards the surface.
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