Inhomogeneity of vortices in 2d classical XY-model: a microcanonical Monte carlo simulation study

摘要

the extended 2d classical XY-model has been studied using microcanonical Monte Carlo simulations. Simulations have been carried out on 30x30 spin system on a square Lattice. We find that the maximum inhomogeneity of vortex distribution occurs at a temperatures Which coincides with the position of specific heat peak in the kossterliz-Thouless (KT) case and In the coexistence region in the first order case. The inhomogeneity is found to be more in the KT case as compared to the first order one.