CORRELATIONS IN THE LIQUID INTERFACES OF SIMPLE LIQUIDS

From molecular-dynamics simulation of liquid-liquid interface at low t emperatures between two simple liquids, we determine two point correla tion functions, also for the liquid-vacuum interface. True Fourier vec tor in-plane dependence, correlations parallel and perpendicular to th e interface, susceptibilities, and surface scattering factor (in the B orn approximation) are discussed. The Bhatia-Thornton transformation i s generalized to inhomogeneous systems and applied. Effects of capilla ry waves, surface reconstruction, surface layering, and prominence of bulk structures are found and discussed. (C) 1995 American Institute o f Physics.