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

Figure 1. (a) Experimental and (b) theoretical PES of atomic Ga. The uppermost solid black line in panel (b) is the overall predicted spectrum. The two lines underneath, solid (green) and dashed (blue), are simulated individual spectra following the ionization of the ²P_3/2 and ²P_1/2 initial states, respectively.

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.