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 (9)D 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.