Properties of heavy rare-gases adlayers on graphene substrates

Abstract

We investigated properties of heavy rare-gases, Ne, Ar, Kr, Xe and Rn, adsorbed on graphene substrates using molecular dynamics. We gathered evidences of commensurate solids for Ne and Kr adlayers, one of them is given by a typical behavior of the nearest neighbor distance of the adatoms. The specific heat and the melting temperature were calculated and both indicate continuous melting for all heavy noble-gases studied. We also determined the distance between the adlayer and the substrate.