Magnetic susceptibilities of Y sub y U sub 1-y O sub 2+x solid solutions

Journal Article · Sun Sep 01 04:00:00 EDT 1991 · Journal of Solid State Chemistry; (United States)

DOI:https://doi.org/10.1016/0022-4596(91)90229-B· OSTI ID:7040017

Hinatsu, Yukio ^[1]

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1. Japan Atomic Energy Research Inst., Tokaimura (Japan)

Magnetic susceptibilities of Y{sub y}U{sub 1{minus}y}O{sub 2+x} solid solutions with fluorite structure were measured from 4.2 K to room temperature. An antiferromagnetic transition was observed even for the solid solutions in which the mean uranium valency is over +5. From the comparison of the susceptibility data of oxygen hyper- and hypostoichiometric solid solution (x{gt or lt}0) with those of stoichiometric solid solutions (x=0), it was found that both oxygen interstitials and oxygen vacancies weaken the magnetic exchange interactions between uranium ions. With increasing yttrium and oxygen concentrations, the effective magnetic moment of uranium decreased, and the uranium ions were found to be oxidized from +4 to +6 through the +5 state.

• OSTI ID: 7040017
• Journal Information: Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 94:1; ISSN 0022-4596; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ACTINIDE COMPOUNDS
ANTIFERROMAGNETISM
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COHERENT SCATTERING
DATA
DIFFRACTION
DISPERSIONS
EXPERIMENTAL DATA
FLUORITE
HALIDE MINERALS
INFORMATION
IONS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MINERALS
MIXTURES
NEEL TEMPERATURE
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SOLID SOLUTIONS
SOLUTIONS
STOICHIOMETRY
SYNTHESIS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
URANIUM COMPOUNDS
URANIUM OXIDES
VALENCE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES