4d photoionization and subsequent Auger decay in atomic Eu

摘要

The synchrotron-radiation-excited 4d photoelectron and subsequent Auger spectra of atomic Eu have been recorded with high resolution. The lifetime widths, intensity ratios, and binding energies of the most prominent D-9 states of the 4d(-1) configuration have been determined with high accuracy from the measured spectrum. Experimental spectra have been compared with the results of relativistic multiconfiguration Dirac-Fock calculations., The features seen in the Auger spectrum have been found to be predominantly due to Coster-Kronig and super-Coster-Kronig transitions.