Okada, Kozo; Kotani, Akio

Journal of the Physical Society of Japan (1992), 61(2), 449-53 CODEN: JUPSAU; ISSN: 0031-9015. English.

The Co 2p core-level x-ray absorption (XAS) and XPS spectra in CoO were investigated based on a CoO6 cluster model, where Co 3d-O 2p hybridization and multiplet coupling are fully taken into account. Attention was paid to the effects of multiplet coupling on the XPS and those of Co 3d-O 2p hybridization on the XAS, because those points were disregarded in the analyses made so far by many authors. From the combined anal., the XPS and XAS provide complementary information on the electronic states of CoO.