Magnetic susceptibilities of UO/sub 2/-ThO/sub 2/ solid solutions

Journal Article · Fri Nov 15 04:00:00 EST 1985 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(85)90112-4· OSTI ID:6443699

Hinatsu, Y; Fujino, T

The magnetic susceptibility of UO/sub 2/-ThO/sub 2/ solid solutions has been measured from room temperature to 2.0 K. The magnetic moment and the Weiss constant have been determined in the temperature range in which the Curie-Weiss law holds. For the solid solutions showing antiferromagnetic transition, the Neel temperature has been also determined. These values decrease monotonically with increasing ThO/sub 2/ concentration. The results were analyzed using the molecular field theory which includes the interaction between next-nearest neighbor spins. The interactions between nearest neighbor spins, J/sub 1/, and those between next-nearest neighbor spins, J/sub 2/, both decrease with increasing ThO/sub 2/ concentration. The change of J/sub 1/ with composition is larger than that of J/sub 2/. The effect of magnetic dilution with ThO/sub 2/ is considered to be stronger on the interaction between nearest neighbor uranium ions.

• Research Organization: Japan Atomic Energy Research Institute, Tokoi-mura
• OSTI ID: 6443699
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 60:2; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
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400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
CHALCOGENIDES
DATA
DISPERSIONS
EXPERIMENTAL DATA
INFORMATION
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLID SOLUTIONS
SOLUTIONS
THORIUM COMPOUNDS
THORIUM OXIDES
ULTRALOW TEMPERATURE
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
VERY LOW TEMPERATURE