Surface melting of the vortex lattice

Details Surface melting of the vortex lattice Surface melting of the vortex lattice

2005-11-02

arxiv.org/abs/cond-mat/0511046v1

Phys. Rev. Lett. 96, 177001 (2006)

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.96.177001

We discuss the effect of an (ab)-surface on the melting transition of the pancake-vortex lattice in a layered superconductor within a density functional theory approach. Both discontinuous and continuous surface melting are predicted for this system, although the latter scenario occupies the major part of the low-field phase diagram. The formation of a quasi-liquid layer below the bulk melting temperature inhibits the appearance of a superheated solid phase, yielding an asymmetric hysteretic behavior which has been seen in experiments.

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