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Long-Range Fluctuation-Induced Attraction of Vortices to the Surface in Layered Superconductors

E. H. Brandt·R. G. Mints·I. B. Snapiro
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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 c-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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E. H. Brandt, R. G. Mints, I. B. Snapiro. 1995-12-07. Long-Range Fluctuation-Induced Attraction of Vortices to the Surface in Layered Superconductors. https://doi.org/10.1103/physrevlett.76.827

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