Electronic Structures of Perovskite Oxides of Transition Metals of the Type LaMO3 (M = Ti-Ni) as Revealed by MSXα Investigations

Systematic investigations of the electronic structures of MO9- 6 (M = Ti-Ni) clusters, as in the LaMO3 type perovskite oxides, have been carried out by employing the multiple-scattering Xα (MSXα) method. The crystal-field splitting of the metal d level is found to increase, while the oxygen-to-metal charge-transfer energy decreases across the transition metal series. Systematic trends are also seen in the mixing (covalency) between the metal d and the oxygen 2p orbitals in the series.