Step-edge barriers on GaAs(001)

Abstract
We investigate the growth kinetics on vicinal GaAs(001) surfaces by making detailed comparisons between reflection high-energy electron-diffraction specular intensity measured near in-phase diffraction conditions and the surface step density obtained from simulations of a solid-on-solid model. Only by including a barrier to interlayer transport and a short-range incorporation process of freshly deposited atoms can the simulations be brought into agreement with the measurements both during growth and during post-growth equilibration of the surface.
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