Evaporation of the PancakeVortex Lattice in Weakly Coupled Layered Superconductors
Abstract
We calculate the melting line of the pancakevortex system in a layered superconductor, interpolating between twodimensional (2D) melting at high fields and the zerofield limit of singlestack evaporation. Longrange interactions between pancake vortices in different layers permit a meanfield 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 firstorder melting transition and its jump in entropy.
 Publication:

Physical Review Letters
 Pub Date:
 March 2000
 DOI:
 10.1103/PhysRevLett.84.2698
 arXiv:
 arXiv:condmat/9911439
 Bibcode:
 2000PhRvL..84.2698D
 Keywords:

 Condensed Matter  Superconductivity
 EPrint:
 4 pages, RevTeX, two postscript figures incorporated using epsf