A systematic study was made of the diffusion of single adatoms and of the growth of face-centered cubic silver and gold clusters (Wulff polyhedra). Both metals were modelled by many-body tight-binding potentials. The energy barriers for adatom diffusion on the cluster facets were calculated by the nudged elastic band method. Concerning single-adatom diffusion, a study was made of the mechanisms connecting different facets [(111) and (100)] that played the main role during growth. It was found that the diffusion among different facets took place by exchange processes in both metals. However, it was found that the mobility from a (111) to a (100) facet was much easier in gold than in silver. This had important consequences for the growth modes of the clusters. In fact, the growth simulations showed that the transition from the Wulff shape to the octahedron was possible with gold even at low temperatures and quite rapid deposition rates whereas, for silver, much higher temperatures were required.Molecular Dynamics Simulations of Surface Diffusion and Growth on Silver and Gold Clusters. Baletto, F., Mottet, C., Ferrando, R.: Surface Science, 2000, 446[1-2], 31-45