Physics – Condensed Matter – Materials Science
Scientific paper
2001-07-30
Surf. Sci. vol. 507-510, 305 (2002)
Physics
Condensed Matter
Materials Science
4 pages, 3 figures, RevTex
Scientific paper
10.1016/S0039-6028(02)01262-1
We study the meandering instability during growth of an isolated nanostructure, a crystalline cone, consisting of concentric circular steps. The onset of the instability is studied analytically within the framework of the standard Burton-Cabrera-Frank model, which is applied to describe step flow growth in circular geometry. We derive the correction to the most unstable wavelength and show that in general it depends on the curvature in a complicated way. Only in the asymptotic limit where the curvature approaches zero the results are shown to reduce to the rectangular case. The results obtained here are of importance in estimating growth regimes for stable nanostructures against step meandering.
Ala-Nissila Tapio
Koponen I. T.
Rusanen Marko
No associations
LandOfFree
Meandering instability of curved step edges on growth of a crystalline cone does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Meandering instability of curved step edges on growth of a crystalline cone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Meandering instability of curved step edges on growth of a crystalline cone will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-447550