CROSSOVER SCALING IN THICK-FILM GROWTH ON VICINAL SURFACES

Crystal growth by particle deposition on a vicinal surface is studied by kinetic Monte Carlo simulations as a model for molecular beam epita xy. In particular, the crossover between step flow and layer-by-layer growth during thick film deposition is investigated as a function of t he atom deposition rate F, temperature and step-step distance d. The c rossover scaling function for the island density is derived analytical ly by coupling rate equations to the Burton, Cabrera and Frank theory for step flow.