The stabilization of the highest oxidation states of transition metals under oxygen pressures: TlNiO3, a new Ni(III) perovskite - comparison of the electronic properties with those of TNiO3 (T = rare earth and Y)

The crystal structure and the magnetic properties of TlNiO3 have been characterized and compared with those of TNiO3 (T = rare earth and Y). The electronic structure of Ni(III) has been investigated by Mössbauer spectroscopy. Through these analyses, the effects of the A-site ion on structural distortion, magnetic behaviour and electronic structure of Ni(III) in a perovskite have been discussed