Nonlinear interaction of macrosteps on vicinal surfaces at crystal growth from vapor

The profile dynamics of a macroscopic curved vicinal surface of a crystal, during its growth from the vapor phase, has been investigated. The averaging method on large intervals of spatial coordinate change, which nevertheless remained infinitely small, was used. The expressions for average values of adatom concentration and velocity of elementary steps were obtained. With a phenomenological account of the boundary curvature, the nonlinear...