Systematics in the magnetic properties of ternary actinoid oxides
Magnetic data for ternary actinoid oxides with central ions exhibiting the (Rn)5f(n) electronic structure have been investigated to establish systematics for magnetic behaviour and/or relations between structure and magnetism. All compounds with (Rn)5f(0) central ions exhibit a temperature-independent susceptibility which is ascribed to ligand orbital admixture into the 5f orbitals. The magnetic moments of (Rn)5f(1) compounds are composed of a constant and a temperature dependent part, which are ascribed to ligand orbital admixtures and the 5f electrons, respectively. The low temperature behaviour of (Rn)5f(2n+1) compounds can be explained qualitatively by the lattice structures involved; An-O-An chains are necessary to make superexchange possible, and a certain maximum distance between the paramagnetic ions must not be exceeded.
Bibliographic Reference: Article: Journal of Solid State Chemistry, Vol. 107 (1993) pp. 273-284
Record Number: 199311605 / Last updated on: 1994-11-28
Original language: en
Available languages: en