From atomistic dynamics to mesoscale models of epitaxial growth

Dionisios Margetis, U Maryland




Epitaxial growth encompasses processes and phenomena in which atoms are deposited on and adsorbed in the surfaces of crystals. This talk addresses aspects of the following question. How can the random motion of atoms on such surfaces give rise to organized nanoscale structures? By starting with an atomistic description, I will discuss the emergence of motion laws for nanoscale line defects, steps, on the crystal surface in 1+1 dimensions.