Output details
12 - Aeronautical, Mechanical, Chemical and Manufacturing Engineering
University of Sheffield : B - Chemical and Biological engineering
Does Impurity-Induced Step-Bunching Invalidate Key Assumptions of the Cabrera−Vermilyea Model?
It was shown that the mechanism of recovery by activation of elementary step motion assumed by Cabrera and Vermilyea (C-V) is not applicable to a diverse set of common and technologically important crystal systems. A general condition that must be met for a crystal-impurity system to behave according to the C-V predictions was proposed. Understanding of these issues will likely be a pivotal prerequsite for controlling structural and compositional uniformity during crystallization of a wide range of materials such as nonlinear optical crystals, pharmaceuticals, and proteins where the crystal perfection and purity are of paramount importance.