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High-resolution Ag L3-edge XANES for a series of Au-Ag alloys, AuAg3, AuAg, and Au3Ag, have been obtained by monitoring the intensity of the highly energy-resolved Ag L3M4,5M4,5(1G4) Auger line. The experimental results reveal features that were previously unresolved with total electron yield techniques and confirm previous observations that Ag gains d charge and Au loses d in Au-Ag alloys. Full-scale multiple scattering calculations for the Ag L3-edge XANES of Ag and AuAg yield semiquantitative agreement with the experiment. The results show that in the case of wide band metals, the Auger yield of a well-separated narrow final state can indeed be used to improve the resolution of XANES near the threshold. The implication of the results to electron charge redistribution upon alloying is discussed

physical review. b, condensed matter

Sublifetime-resolution Ag<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>L</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>-edge XANES studies of Ag-Au alloys

Sublifetime-resolution AgL3-edge XANES studies of Ag-Au alloys