Nanotech 2005 Vol. 2
Nanotech 2005 Vol. 2
Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 2

Surfaces and Films Chapter 5

Multiscale Modeling of Self-Organized Mono-layer Surface Atomic Clusters

Authors: Q. Hu, N.M. Ghoniem and D. Walgraef

Affilation: University of California, Los Angeles, United States

Pages: 306 - 309

Keywords: Multiscale modelling, thin film, adatom clusters

We present here a novel multiscale modeling approach to investigate the conditions for atomic cluster self-organization on atomically flat substrates during epitaxy deposition processes. A phase field model is developed for the free energy of the system, which includes short-range chemical-type as well as long-range elastic-type interactions between deposited atoms and atom clusters. The effects of externally applied periodic strain fields through the substrate are investigated. At very low atomic coverage, a Kinetic Monte Carlo method is used to determine the nucleation conditions for atomic clusters forming on surfaces with periodic strain fields.

ISBN: 0-9767985-1-4
Pages: 808
Hardcopy: $109.95