Multilayer relaxation and surface energies of metallic surfaces

Abstract

The perpendicular and parallel multilayer relaxations of fee (210) surfaces are studied using equivalent crystal theory (ECT). A comparison with experimental and theoretical results is made for Al(210). The effect of uncertainties in the input parameters on the magnitudes and ordering of surface relaxations for this semiempirical method is estimated. A new measure of surface roughness is proposed. Predictions for the multilayer relaxations and surface energies of the (210) face of Cu and Ni are also included.