%0 Journal Article
%T Size-mismatch disorder at the surface of semiconductors
%V 52
%N 4
%P 2660-2667
%U http://link.aps.org/doi/10.1103/PhysRevB.52.2660
%X We study the effects of size-mismatch disorder on the surface relaxation of semiconductor solid solutions. Assuming a Kirkwood-type potential, we obtain an analytic solution for the nearest-neighbor distances and their distributions as a function of the distance from the surface as well as the displacements at the (111) and (100) surfaces. This solution is also valid for bond-mismatch disorder and is checked against computer simulations for two-dimensional triangular networks along (10) and (11) surfaces. Predictions are made for the topography of the (111) surface of a SiGe alloy.
%J Physical Review B
%A Mousseau, Normand
%A Thorpe, M. F.
%D July 15, 1995