Emergence of macroscopic surface structure from atomistic dynamics in epitaxial film growth

TitleEmergence of macroscopic surface structure from atomistic dynamics in epitaxial film growth
Publication TypeJournal Article
Year of Publication2006
AuthorsBallestad, A., and T. Tiedje
JournalPhysical Review B
Volume74
ISSN1098-0121
Abstract

A nonlinear differential equation is derived for the surface shape evolution in epitaxial growth, from a transport equation for the adatoms. A negative Ehrlich-Schwobel barrier is assumed to be present at atomic steps, favoring downhill migration of adatoms. Expressions for the coefficients in the growth equation are obtained in terms of the deposition rate, step density, step edge potential barrier, and adatom release rate from step edges. The analytical model is tested by comparison with a kinetic Monte Carlo simulation of a solid-on-solid model, which includes the same physical phenomena.

URLhttp://dx.doi.org/10.1103/PhysRevB.74.153405
DOI10.1103/PhysRevB.74.153405

a place of mind, The University of British Columbia

Electrical and Computer Engineering
2332 Main Mall
Vancouver, BC Canada V6T 1Z4
Tel +1.604.822.2872
Fax +1.604.822.5949
Email:

Emergency Procedures | Accessibility | Contact UBC | © Copyright 2021 The University of British Columbia