Surface properties of classical one-component plasma

Abstract

Surface properties of classical one-component plasma are investigated by numerical experiments on the system with periodicity in two directions perpendicular to the planar surface. The density profile, the electrostatic potential and the surface energy are obtained for intermediate values of the coupling parameter of the bulk part Gamma and compared with earlier experiments on spherical systems. For Gamma =10, the surface energy is almost the same as the earlier result. For Gamma =1, however, the surface energy is reduced by about a factor of two. The consistency of experimental values of the potential with the exact relation is checked and the necessity of large system size is pointed out.