Abstract
The adsorption of oxygen on Cu(110) has been studied by High Energy Ion Scattering (HEIS). Analysis of the (2 × 1)-O structure indicated an absolute oxygen coverage of 0.51 ± 0.06 monolayer. Good agreement with experimental data was obtained for a buckled (110) surface model, in which every second [001] surface row is displaced outwards by 0.27 ± 0.05 A ̊ from its bulk-like position, with the remaining [001] surface rows shifted insignificantly inwards by 0.02 ± 0.03 A ̊ and the second layer displaced outwards by 0.06 ± 0.03 A ̊ . The c(6 × 2)-O structure was shown to involve lateral displacement components ⪆ 0.3 Å for the first monolayer atoms.
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