(a) Experimental and (b) theoretical AES of atomic Ga

Figure 2. (a) Experimental and (b) theoretical AES of atomic Ga. The uppermost solid black line in panel (b) is the overall predicted spectrum. The (red) dashed line depicts the contribution for Auger decay to 3d⁸4s²4p, (green) dotted line for 3d⁹4s4p and (blue) solid line for 3d⁹4s² final state configuration.

Abstract

The 3p photoionization and subsequent Coster–Kronig type of Auger decay of initially neutral atomic gallium were studied both experimentally and theoretically. The binding energies and relative intensities of the 3p photoelectron spectrum together with a satellite structure are given. The M_{2, 3}MM and M_{2, 3}MN Auger electron spectrum leading to doubly ionized final states is presented. The synchrotron radiation excited photoelectron and Auger electron spectra were interpreted using multiconfiguration Dirac–Fock calculations providing spectral identification for the main observed features.