Reconstruction and dislocation network formation of the (111) surface of the ordered alloy Pt3Sn

Authors
Kuntze, J Speller, S Heiland, W Atrei, A Spolveri, I Bardi, U
Citation
J. Kuntze et al., Reconstruction and dislocation network formation of the (111) surface of the ordered alloy Pt3Sn, PHYS REV B, 58(24), 1998, pp. R16005-R16008
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
58
Issue
24
Year of publication
1998
Pages
R16005 - R16008
Database
ISI
SICI code
0163-1829(199812)58:24<R16005:RADNFO>2.0.ZU;2-R
Abstract
A Scanning tunneling microscopy study of the ordered alloy Pt3Sn is present ed. The (111) surface shows a bulk terminated p(2x 2) structure or a (root 3 x root 5) R30 degrees reconstruction, depending on preparation conditions . In addition, the reconstructed surface exhibits a mesoscopic honeycomb ne twork. The network indicates the presence of subsurface dislocations, which are induced by a tin depletion due to preferential sputtering. On the p(2x 2) structure small islands with uniform size are found, which are attribute d to segregated tin. [S0163-1829(98)50948-4].