Segregation of Pt at clean surfaces of (Pt, Ni)(3)Al

TitleSegregation of Pt at clean surfaces of (Pt, Ni)(3)Al
Publication TypeJournal Article
Year of Publication2007
AuthorsQin F, Jiang C, Anderegg JW, Jenks CJ, Gleeson B, Sordelet DJ, Thiel PA
Journal TitleSurface Science
Date PublishedJan
Type of ArticleArticle
ISBN Number0039-6028
Accession NumberISI:000244006200011
KeywordsAuger electron, density functional calculations, ENE, energy ion scattering (LEIS), low, low energy electron diffraction (LEED), nickel aluminde, platinum, ray photoelectron-spectroscopy, spectroscopy, surface segregation, X-ray photoelectron spectroscopy

Experimental evidence for surface segregation of Pt at (111) surfaces of ternary (Pt, Ni)(3)Al alloys is presented, based upon Auger electron spectroscopy, low energy ion scattering, and angle-resolved X-ray photoelectron spectroscopy. Density functional calculations in the dilute limit confirm that Pt segregation is energetically favored. (c) 2006 Elsevier B.V. All rights reserved.

Alternate JournalSurf. Sci.