Two-Dimensional Vortex Lattice Melting

Details Two-Dimensional Vortex Lattice Melting Two-Dimensional Vortex Lattice Melting

1993-05-14

arxiv.org/abs/cond-mat/9305011v1

Physics

Condensed Matter

10 pages (4 figures available on request), RevTex 3.0, IUCM93-009

Scientific paper

10.1103/PhysRevLett.71.432

We report on a Monte-Carlo study of two-dimensional Ginzburg-Landau superconductors in a magnetic field which finds clear evidence for a first-order phase transition characterized by broken translational symmetry of the superfluid density. A key aspect of our study is the introduction of a quantity proportional to the Fourier transform of the superfluid density which can be sampled efficiently in Landau gauge Monte-Carlo simulations and which satisfies a useful sum rule. We estimate the latent heat per vortex of the melting transition to be $\sim 0.38 k_B T_M$ where $T_M$ is the melting temperature.

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