Magnetic studies on Sc/sub y/U/sub 1-y/O/sub 2+x/ solid solutions

Journal Article · Thu May 01 04:00:00 EDT 1986 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(86)90249-5· OSTI ID:5336041

Hinatsu, Y; Fujino, T

Magnetic susceptibilities of Sc/sub y/U/sub 1-y/O/sub 2+x/ solid solutions have been measured from 2.7 K to room temperature. The magnetic moment and 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 also been determined. The substitution of Sc/sup 3 +/ for U/sup 4 +/ was found to effect not only magnetic dilution of UO/sub 2/, but also oxidation of U/sup 4 +/ to U/sup 5 +/. Excess oxygen ions which entered the interstitial sites, weakened the antiferromagnetic interaction between uranium ions and oxidized U/sup 4 +/ to U/sup 5 +/. The effect of oxygen vacancies on the antiferromagnetic interaction was small in the concentration range of this experiment (0.8 a/o).

• Research Organization: Japan Atomic Energy Research Institute, Tokai-mura
• OSTI ID: 5336041
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 62:3; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ACTINIDE COMPOUNDS
ANTIFERROMAGNETISM
CHALCOGENIDES
CURIE-WEISS LAW
DATA
EXPERIMENTAL DATA
INFORMATION
LOW TEMPERATURE
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MEDIUM TEMPERATURE
NEEL TEMPERATURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCANDIUM COMPOUNDS
SCANDIUM OXIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
URANIUM COMPOUNDS
URANIUM OXIDES
VERY LOW TEMPERATURE