Kinetics of facile bilayer island formation at low temperature: Ag/NiAl(110)

TitleKinetics of facile bilayer island formation at low temperature: Ag/NiAl(110)
Publication TypeJournal Article
Year of Publication2008
AuthorsHan Y, Unal B, Qin FL, Jing DP, Jenks CJ, Liu DJ, Thiel PA, Evans JW
Journal TitlePhysical Review Letters
Volume100
Pages116105
Date PublishedMar
Type of ArticleArticle
ISBN Number0031-9007
Accession NumberISI:000254292300042
Keywordsfilms, growth
Abstract

Facile nucleation and growth of bilayer Ag(110) islands on NiAl(110) is observed by STM for Ag deposition at temperatures as low as 127 K. Density functional theory analysis for supported Ag films determines adatom adsorption energies (which favor bilayer islands), interaction energies, and diffusion barriers. Analysis of an atomistic lattice-gas model incorporating these energies elucidates the role of strongly anisotropic interactions in enabling the upward mass transport needed for bilayer island formation.

DOI10.1103/PhysRevLett.100.116105
Alternate JournalPhys. Rev. Lett.