Formate-induced destabilization of the Cu(1 1 0) surface

Scanning tunneling microscopy (STM) images show that adsorbed formate has a profound affect on the step edges of Cu(1 1 0) surfaces at room temperature. For low exposures, the presence of formate enhances step fluctuations as confirmed by a correlation function analysis. For formate coverages approa...

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Bibliographic Details
Published in:Surface science 2006-03, Vol.600 (6), p.1193-1200
Main Authors: Harrington, S.J., Kilway, K.V., Zhu, D.-M., Phillips, J.M., Leibsle, F.M.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Copper
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Formate
Physics
Scanning tunneling microscopy
Semiempirical calculations
Surface chemical reactions
Surface roughening
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Summary:Scanning tunneling microscopy (STM) images show that adsorbed formate has a profound affect on the step edges of Cu(1 1 0) surfaces at room temperature. For low exposures, the presence of formate enhances step fluctuations as confirmed by a correlation function analysis. For formate coverages approaching 0.5 monolayers, drastic restructuring of step edges is observed. Quantum chemical calculations help to explain this behavior.
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2005.10.065