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- W3021161246 abstract "Structural and electronic properties of ultrathin Au films deposited on Pt(111) and annealed at different temperatures have been studied by ultraviolet photoelectron spectroscopy (UPS), photoemission of adsorbed xenon (PAX) and low energy electron diffraction (LEED). The LEED measurements indicate an initial pseudomorphic growth of the Au films. The UPS and PAX experiments show a strong temperature dependence of the surface morphology. The surface covered with Au at 150 K is quite rough but smoothens significantly above room temperature. At a temperature of 750 K intermixing and the formation of an Au–Pt surface alloy start at the interface. The electronic properties of this surface alloy seem to be nearly independent from the originally deposited Au amount in the investigated range of 1–10 monolayers. The removal of Au from the surface regions has also been verified by scanning tunneling microscopy. Adsorption experiments with CO as a titration agent show a significantly lower affinity of the Au–Pt surface alloy in comparison with the clean Pt surface." @default.
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- W3021161246 date "2010-05-01" @default.
- W3021161246 modified "2023-10-16" @default.
- W3021161246 title "Characterization of bimetallic Au–Pt(111) surfaces" @default.
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- W3021161246 doi "https://doi.org/10.1016/j.tsf.2009.09.082" @default.
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