Interface Dynamics and Far-From-Equilibrium Phase Transitions in Multilayer Epitaxial Growth and Erosion on Crystal Surfaces: Continuum Theory Insights
Leonardo Golubovic 1*, Artem Levandovsky 2, Dorel Moldovan 31 Physics Department, West Virginia University, Morgantown WV 26506-6315, USA.
2 Department of Physics and Astronomy, University of California, Riverside, CA 92521, USA.
3 Mechanical Engineering Department, Louisiana State University, Baton Rouge, LA 70803-6413, USA.
Received 4 April 2011; Accepted (in revised version) 3 June 2011
Available online 23 September 2011
We review recent theoretical progress in the physical understanding of far-from-equilibrium phenomena seen experimentally in epitaxial growth and erosion on crystal surfaces. The formation and dynamics of various interface structures (pyramids, ripples, etc.), and also kinetic phase transitions observed between these structures, can all be understood within a simple continuum model based on the mass conservation law and respecting the symmetries of the growing crystal surface. In particular, theoretical predictions and experimental results are compared for (001), (110) and (111) crystal surfaces.
PACS: 81.15.Aa, 89.75.Kd, 05.90.+m
Key words: Interface dynamics, epitaxial growth, non-equilibrium phase transitions.
Email: email@example.com (L. Golubovic)