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Dynamic Melting and Decoupling of the Vortex Lattice in Layered Superconductors

Stefan Scheidl·Valerii M. Vinokur
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Abstract

The dynamic phase diagram of vortex lattices driven in disorder is calculated in two and three dimensions. A modified Lindemann criterion for the fluctuations of the distance of neighboring vortices is used, which unifies previous analytic approaches to the equilibrium and non-equilibrium phase transitions. The temperature shifts of the dynamic melting and decoupling transitions are found to scale inversely proportional to large driving currents. A comparison with two-dimensional simulations shows that this phenomenological approach can provide quantitative estimate for the location of these transitions.

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Stefan Scheidl, Valerii M. Vinokur. 1997-12-22. Dynamic Melting and Decoupling of the Vortex Lattice in Layered Superconductors. https://doi.org/10.1103/physrevb.57.13800

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