Depinning transition of a two-dimensional vortex lattice in a commensurate periodic potential.
We use Monte Carlo simulations of the 2D one component Coulomb gas on a triangular lattice, to study the depinning transition of a 2D vortex lattice in a commensurate periodic potential. A detailed finite size scaling analysis indicates this transition to be first order. No significant changes in behavior were found as vortex density was varied over a wide range.
Gotcheva
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Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA.
Teitel
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