Surface structure change of a growing crystal on the solid-on-solid model under MBE conditions

Abstract

The surface structure change of a growing crystal under MBE (molecular beam epitaxy) conditions is studied on the solid-on-solid (SOS) model by solving a set of kinetic equations. The average number of atom-vacancy pairs is found to change periodically with a period corresponding to the completion of a monolayer, reflecting the layer-by-layer growth mode.