Energy dependence of Cu satellites using synchrotron excited x-ray-emission spectroscopy

Abstract

The (Formula presented) x-ray emission of Cu metal has been measured using monochromatic synchrotron radiation. The self-absorption effect in the spectra is shown to be very small in our experimental geometry. From the quantitative analysis of spectra recorded at different excitation energies, the (Formula presented) emission intensity ratio and the partial Auger width are extracted. High-energy satellite features on the (Formula presented) emission line are separated by a subtraction procedure. The satellite intensity is found to be slowly increasing for excitation energies between the (Formula presented) and (Formula presented) core-level thresholds due to shake-up and shake-off transitions. As the excitation energy passes the (Formula presented) threshold, a step of rapidly increasing satellite intensity of the (Formula presented) emission is found due to additional Coster-Kronig processes. © 1997 The American Physical Society.