RECONSTRUCTION OF THE OXYGEN-COVERED CU3AU(110) SURFACE INVESTIGATED BY LOW-ENERGY ION BACK SCATTERING AND LEED

Authors
MORGENSTERN K NIEHUS H COMSA G
Citation
K. Morgenstern et al., RECONSTRUCTION OF THE OXYGEN-COVERED CU3AU(110) SURFACE INVESTIGATED BY LOW-ENERGY ION BACK SCATTERING AND LEED, Surface science, 338(1-3), 1995, pp. 1-10
Citations number
20
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
338
Issue
1-3
Year of publication
1995
Pages
1 - 10
Database
ISI
SICI code
0039-6028(1995)338:1-3<1:ROTOCS>2.0.ZU;2-P
Abstract
The Cu3Au(110) surface has been investigated by 180 degrees low energy ion scattering spectroscopy in impact collision mode with the detecti on of noble gas neutrals (NICISS) and low energy electron diffraction (LEED). Oxygen adsorption on the clean surface at room temperature lea ds to a (2 X 1) reconstruction. The reconstructed surface no longer co ntains gold in its topmost layer, but instead copper and oxygen atoms. The surface is composed of Cu-O-Cu-O-Cu chains in the [001] direction . In the [110] direction every second row is missing. Evidence for thi s ''added-row'' model will be given.