Campus Units
Mathematics, Physics and Astronomy, Ames Laboratory
Document Type
Article
Publication Version
Published Version
Publication Date
12-2005
Journal or Book Title
Physical Review Letters
Volume
95
Issue
25
First Page
256101-1
Last Page
256101-4
DOI
10.1103/PhysRevLett.95.256101
Abstract
A "step dynamics" model is developed for mound formation during multilayer homoepitaxy. Downward funneling of atoms deposited at step edges is incorporated and controls mound slope selection. Behavior of the selected slope differs from that predicted by phenomenological continuum treatments where the lateral mass current vanishes identically. Instead, this current is shown to vary periodically and vanish only on average. An exact coarse-grained continuum formulation with appropriate boundary conditions is derived and recovers step dynamics results.
Copyright Owner
American Physical Society
Copyright Date
2005
Language
en
File Format
application/pdf
Recommended Citation
Li, Maozhi and Evans, James W., "Theoretical Analysis of Mound Slope Selection during Unstable Multilayer Growth" (2005). Mathematics Publications. 9.
https://lib.dr.iastate.edu/math_pubs/9
Comments
This article is from Physical Review Letters 95 (2005): 25601, doi: 10.1103/PhysRevLett.95.256101. Posted with permission.