Pt L3,2-edge whiteline anomaly and its implications for the chemical behaviour of Pt 5d5/2 and 5d3/2 electronic states – a study of Pt-Au nanowires and nanoparticles

We report the L3,2-edge whiteline anomaly observed in PtAu nanowire, PtAu and Pt nanoparticles deposited on Si nanowire, and their comparison with that of Pt metal. It is found that charge redistribution upon the formation of these materials can indeed be tracked with the L3,2 whiteline intensity. The implications of these findings are discussed.