OBSERVATION OF A MISSING-ROW STRUCTURE ON AN FCC(111) SURFACE - THE (5-ROOT-3X2)S PHASE ON NI(111) STUDIED BY SCANNING-TUNNELING-MICROSCOPY

Authors
RUAN L STENSGAARD I BESENBACHER F LAEGSGAARD E
Citation
L. Ruan et al., OBSERVATION OF A MISSING-ROW STRUCTURE ON AN FCC(111) SURFACE - THE (5-ROOT-3X2)S PHASE ON NI(111) STUDIED BY SCANNING-TUNNELING-MICROSCOPY, Physical review letters, 71(18), 1993, pp. 2963-2966
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
18
Year of publication
1993
Pages
2963 - 2966
Database
ISI
SICI code
0031-9007(1993)71:18<2963:OOAMSO>2.0.ZU;2-T
Abstract
A missing-row reconstruction of an fcc (111) metal surface has been ob served for the first time. Direct observation of many small islands fo rmed at the surface during S adsorption on Ni(111) indicates that a lo ng-range mass transport takes place and that the surface undergoes a r econstruction. We present evidence that this reconstruction correspond s to a model in which every fifth Ni [110] surface row is missing, wit h a total of 0.4 monolayer of S atoms adsorbed in threefold hollow pos itions on the surface and in the created troughs. The driving force fo r this novel missing-row reconstruction is proposed to be adsorption-i nduced surface stress.