Figure 1
From: Cadmium and lithium doping in silver orthophosphate: An ab initio study

The formation energies of possible Cd monodoped defects, CdAg, CdP, CdO, Cdi and Cdi(s), together with (CdAg-2NO) complex as a function of the Fermi energy under O-rich (a) and O-poor (b) conditions. Only the lowest formation energy states are shown.