Abstract
Abstract The partial photoionization cross section of the titanium 3d band has been measured using synchrotron radiation in a wide photon energy range (21–110 eV). Our prime interest has been concentrated on the resonant behaviour of the valence band in the vicinity of the 3p and 3s thresholds in which the influence of autoionization appears as drastic fluctuations of a resonant profile. The resonance close to the 3s excitation edge has been interpreted to be primarily caused by the p-character of the unoccupied band and the Cooper minimum of the 3p core level. We have also considered in details the effects which may distort a measured profile. In addition, we have examined the subthreshold Auger emission that should already occur below the edge energy. However, our study does not support the existence of the subthreshold Auger phenomenon in titanium.
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