The Au3Pd(001) surface studied by ion scattering and LEED

Authors
Speller, S Aschoff, M Kuntze, J Heiland, W Atrei, A Bardi, U Platzgummer, E
Citation
S. Speller et al., The Au3Pd(001) surface studied by ion scattering and LEED, SURF REV L, 6(5), 1999, pp. 829-833
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SURFACE REVIEW AND LETTERS
ISSN journal
0218625X → ACNP
Volume
6
Issue
5
Year of publication
1999
Pages
829 - 833
Database
ISI
SICI code
0218-625X(199910)6:5<829:TASSBI>2.0.ZU;2-O
Abstract
The (001) surface of a Au3Pd single crystal was studied with different surf ace analytical techniques. The main results reported about structure, compo sition and dynamics of the surface are based on ion scattering methods and LEED. We find segregation of Au to the surface forming a complete Au overla yer. The second layer has approximately the bulk Pd concentration. There is no evidence for chemical order in the near surface layers, i.e. Pd is rand omly distributed in the lattice. The Au and Pd atoms in the first and the s econd layer respectively have approximately the same thermal vibrational am plitudes.