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arXiv · cond-mat/9911439

Evaporation of the pancake-vortex lattice in weakly-coupled layered superconductors

M. J. W. Dodgson·A. E. Koshelev·V. B. Geshkenbein·G. Blatter
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Abstract

We calculate the melting line of the pancake-vortex system in a layered superconductor, interpolating between two-dimensional (2D) melting at high fields and the zero-field limit of single-stack evaporation. Long-range interactions between pancake vortices in different layers permit a mean-field approach, the ``substrate model'', where each 2D crystal fluctuates in a substrate potential due to the vortices in other layers. We find the thermal stability limit of the 3D solid, and compare the free energy to a 2D liquid to determine the first-order melting transition and its jump in entropy.

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M. J. W. Dodgson, A. E. Koshelev, V. B. Geshkenbein, G. Blatter. 1999-11-26. Evaporation of the pancake-vortex lattice in weakly-coupled layered superconductors. https://doi.org/10.1103/physrevlett.84.2698

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