Thumbnail
Access Restriction
Open

Author Feibelman, P. J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ PLATINUM ♦ SELF-DIFFUSION ♦ DIFFUSION BARRIERS ♦ ADSORPTION ♦ EPITAXY ♦ SURFACE PROPERTIES
Abstract First-principles total energies of periodic vicinals are used to estimate barriers for Pt-adatom diffusion along straight and kinked steps on Pt(111), and around a corner where straight steps intersect. In all cases studied, hopping diffusion has a lower barrier than concerted substitution. In conflict with simulations of dendritic Pt island formation on Pt(111), hopping from a corner site to a step whose riser is a (111) microfacet is predicted to be more facile than to one whose riser is a (100). {copyright} {ital 1999} {ital The American Physical Society}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-08-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 60
Issue Number 7


Open content in new tab

   Open content in new tab