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Multiplet Structures in 3 d and 4 d Core Photoemission Spectra for Ce Compounds

1989; Physical Society of Japan; Volume: 58; Issue: 8 Linguagem: Inglês

10.1143/jpsj.58.2665

1347-4073

S. Imada, Taeho Jo,

Advanced Chemical Physics Studies

The Ce 3 d and 4 d core X-ray photoemission spectra (3 d and 4 d XPS) of Ce compounds are studied based on the impurity Anderson model considering atomic multiplets arising from electron-electron interaction. We make a consistent analysis of 3 d and 4 d XPS of trivalent Ce compounds CeF 3 , CeCl 3 and Ce 2 O 3 , which can only be made by considering the atomic multiplets. We also apply the approach to the interpretation of the spectra of mixed valent Ce systems Ce–Ni compounds and CeO 2 . We show that the analysis of the multiplet structure gives information about many-body electronic states of the system.