Controlling nucleation rates in nanostructures with electron confinement

TitleControlling nucleation rates in nanostructures with electron confinement
Publication TypeJournal Article
Year of Publication2010
AuthorsKuntova Z, Tringides MC, Binz SM, Hupalo M, Chvoj Z
Journal TitleSurface Science
Date Published03/15
ISBN Number0039-6028
Accession NumberISI:000276297000011
Keywordsgrowth, homoepitaxy, models of surface kinetics, monte carlo simulations, nucleation, quantum size effects, scanning tunneling microscopy

One of the goals for growing low dimensional structures is to explore their electronic structure variation with size due to confinement. Recent experiments in Pb adsorption on Pb islands of stable and unstable height at low temperatures have shown a spectacular variation in the nucleated island density (similar to 60 times) as a function of height. With Monte Carlo simulations we can faithfully reproduce the observed morphologies with a single assumption that i(c) is different on stable and unstable islands. This shows that confinement can result in large oscillations of nucleation rates and adsorption. (C) 2009 Elsevier B.V. All rights reserved.

URL<Go to ISI>://000276297000011