O2 induced Cu surface segregation in Au-Cu alloys studied by angle resolved XPS and DFT modelling.

Abstract

Surface segregation effects on polycrystalline Au-Cu alloys (Au(0.80)Cu(0.20), Au(0.85)Cu(0.15) and Au(0.90)Cu(0.10)) were studied at room temperature by angle resolved XPS (ARXPS) and density functional theory (DFT) before and after exposure to O(2). Au surface enrichment was found as predicted from calculations showing that this process is energetically… (More)
DOI: 10.1039/c2cp40565b

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Cite this paper

@article{Voelker2012O2IC, title={O2 induced Cu surface segregation in Au-Cu alloys studied by angle resolved XPS and DFT modelling.}, author={Edgar W. Voelker and Federico J Williams and Ernesto J Calvo and T. M. Jacob and David J. Schiffrin}, journal={Physical chemistry chemical physics : PCCP}, year={2012}, volume={14 20}, pages={7448-55} }