Kink
incorporation and step propagation in a non-Kossel model
H.M. Cuppen, H. Meekes, , W.J.P. van Enckevort and E. Vlieg
Surf. Science 571 (2004) 41-62
Abstract
Most organic and protein crystals have more than one growth unit in the
unit cell. For these structures different growth mechanisms apply as
compared to the simple cubic Kossel crystal, since growth becomes a
multiple step process. New model systems need to be developed to
describe such processes. We present the results of a Monte Carlo
simulation study of the kink incorporation and step propagation of
several growth steps on a non-Kossel crystal structure. We will compare
these results with several theoretical models. Our results show that
the growth of the A–B crystal cannot be described by one universal
expression, but that the local structure of the step is of great
importance and influences the shape of the step velocity versus
supersaturation curve.