QUANTITATIVE-ANALYSIS OF THE AU-NI(111) SYSTEM BY XPS - SEPARATION OF PEAKS AND BACKGROUND SUBTRACTION

New algorithms for extracting non-destructive quantitative information from adsorbate-substrate systems through analysis of XPS spectra are applied to the Au-Ni(111) system. The method involves a separation of the measured spectrum into its adsorbate and substrate constituents followed by a detailed analysis of the adsorbate component. The method is shown to give good structural as well as quantitative information on the Au-Ni(111) system through analysis of one single spectrum. The system is found to grow in a layer-by-layer fashion in agreement with previous results.