Multiplet Structures of Cu 2p-XPS in La2CuO4, CuO and Cu Halides

In this study we analyze the Cu 2 p -XPS in La 2 CuO 4 , CuO and Cu dihalides using the single-site Anderson model with five filled bands. We take into account the multiplet coupling between a Cu 3 d hole and a core hole, and the anisotropic hybridization between the 3 d hole and O 2 p valence band holes. As a result we show that the multiplet structures due to the Cu (2 p ) 5 (3 d ) 9 electron configuration are strongly affected by the anisotropy of the hybridization.