Dd. Chambliss et Ke. Johnson, NUCLEATION WITH A CRITICAL CLUSTER-SIZE OF ZERO - SUBMONOLAYER FE INCLUSIONS IN CU(100), Physical review. B, Condensed matter, 50(7), 1994, pp. 5012-5015
A single-atom nucleation model is studied in which monomers randomly a
nd irreversibly react with the substrate to become immobile and act as
growth nuclei. The reaction kinetics, of first order in monomer densi
ty, yields a cluster size distribution that is insensitive to depositi
on rate and is a decreasing function of cluster size. This matches the
experimental behavior of submonolayer Fe inclusions formed by deposit
ion onto room-temperature Cu(100) and observed with the scanning tunne
ling microscope.