Systematics of strongly correlated ternary 4f compounds on the plane hybridization—f-level occupancy

Abstract We compare the type of behavior of various ternary compounds CeMX (M-metal: Rh, Pd, Ni, and X=Sb, Sn or Al), with the earlier theoretical phase diagram obtained within the Anderson-lattice model. In particular, we locate those compounds on this phase diagram on the plane hybridization vs. 4f-level occupancy. Those parameters have been determined experimentally from the X-ray photoemission spectra using the Gunnarson–Schonhammer approach. Additionally, we compare the values of the 4f-magnetic moment, as well as the total density of states. The agreement is good except for the value of the Kondo insulating gap for CeRhSb and CeNiSn.