Systematics in the magnetic properties of ternary actinoid oxides

Journal Article · Mon Nov 01 00:00:00 EST 1993 · Journal of Solid State Chemistry; (United States)

DOI:https://doi.org/10.1006/jssc.1993.1348· OSTI ID:7284083

Bickel, M ^[1]; Kanellakopulos, B ^[2]

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1. Institute for Reference Materials and Measurements, Geel (Belgium)
2. Kernforschungszentrum Karlsruhe (Germany)

Magnetic data for ternary actinoid oxides with central ions exhibiting the [Rn]5f[sup n] electronic structure have been investigated to establish systematics for magnetic behavior and/or relations between structure and magnetism. All compounds with [Rn]5f[sup o] central ions exhibit a temperature-independent susceptibility which is ascribed to ligand orbital admixture into the 5f orbitals. The magnetic moments of [Rn]5f[sup 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 behavior of [Rn]5f[sup 2n+1] compounds can be qualitatively explained 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.

• OSTI ID: 7284083
• Journal Information: Journal of Solid State Chemistry; (United States), Vol. 107:1; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NEPTUNIUM OXIDES
MAGNETIC PROPERTIES
URANIUM OXIDES
MAGNETIC MOMENTS
MAGNETIC SUSCEPTIBILITY
TEMPERATURE DEPENDENCE
ACTINIDE COMPOUNDS
CHALCOGENIDES
NEPTUNIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSURANIUM COMPOUNDS
URANIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties