Abstract

We have measured Bremsstrahlung-excited L 3M 4,5M 4,5 Auger spectra of Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, and Sb. These core level spectra are sufficiently narrow and have lineshapes simple enough to permit determining the corresponding Auger parameters. By exploiting the theoretical systematics of the excited-atom version of the quasi-atomic model of core hole screening, the valence electron contribution to the Auger parameter can be extracted. Comparison of the L 3M 4,5M 4,5 and M 5N 4,5N 4,5 results for the 4d metals indicates that the d-band holes appear to behave like core holes, except possibly for Nb and Pd.

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