CRITICAL CLUSTER-SIZE - ISLAND MORPHOLOGY AND SIZE DISTRIBUTION IN SUBMONOLAYER EPITAXIAL-GROWTH

The dynamic scaling of the island-size distribution in submonolayer epitaxial growth and its dependence on the critical island size i is studied using a realistic model of epitaxial growth for i=0, 1, 2, and 3. An analytic expression for the scaled island-size distribution as a function of i is also proposed. Our results agree well with experiments on Fe/Fe(100) deposition and on Fe/Cu(100) deposition. Crossover scaling forms for the variation of the island density and critical island size as a function of temperature and deposition rate are also presented. © 1995 The American Physical Society.