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)

Seung-Joo Kim (1) , Gérard Demazeau (1) , Igor A. Presniakov (2)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 Moscow State University

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.

Mots clés: Transition metals; Inorganic compounds; Oxidation; Mössbauer spectroscopy

Domaines: Matériaux

Seung-Joo Kim, Gérard Demazeau, Igor A. Presniakov. 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). Journal of Physics: Condensed Matter, 2002, 14 (44), pp.10741-10745. ⟨10.1088/0953-8984/14/44/369⟩. ⟨hal-00817896⟩