THEORY OF RESONANT INVERSE-PHOTOEMISSION IN CE COMPOUNDS

Information obtained from resonant inverse photoemission(IPE) in Ce co mpounds at the Ce 3d and 4d core threshold is theoretically discussed on the basis of the Anderson impurity model taking into account the fu ll multiplet. By bearing in mind the result of analysis of the IPE spe ctrum at the 3d threshold for CeNi2, that the 4f-ligand hopping integr al in the state with a 3d core hole must be reduced to similar to 1/3 from that in the state without the core hole, an expected incident ele ctron energy dependence of IPE spectrum of CeNi2 near the Ce 4d core t hreshold is discussed.