Melting of the classical bilayer Wigner crystal: influence of the lattice symmetry
arXiv:physics/9904062 · doi:10.1103/PhysRevLett.82.5293
Abstract
The melting transition of the five different lattices of a bilayer crystal is studied using the Monte-Carlo technique. We found the surprising result that the square lattice has a substantial larger melting temperature as compared to the other lattice structures, which is a consequence of the specific topology of the temperature induced defects. A new melting criterion is formulated which we show to be universal for bilayers as well as for single layer crystals.
4 pages, 5 figures (postscript files). Accepted in Physical Review Letters