Magnetic properties of NiO prepared by thermolysis of nickel carbonate

Journal Article · Thu Oct 01 04:00:00 EDT 1987 · Inorg. Mater. (Engl. Transl.); (United States)

OSTI ID:5310876

Viktorov, V V; Fotiev, A A; Gladkov, V E

The magnetic properties of NiO, prepared by thermolysis of nickel carbonate, were determined by magnetic and chemical methods. Mathematical analysis of the results indicate that the experimental dependence of magnetic susceptibility on T, in the paramagnetic regime, is not described by the classical Curie-Neel law for antiferromagnets, but rather in the context of the Heisenberg-Dirac-van Vleck model for pair exchange interaction. Also, it is proposed that in the paramagnetic regime for nickel cations in NiO, there exists a rather strong exchange interaction. The value of the g-factor and exchange interaction parameter for Ni/sup 2 +/-Ni/sup 2 +/ in NiO, along with zero-field energy splitting, were calculated.

• Research Organization: Chemical Institute, Ural (USSR)
• OSTI ID: 5310876
• Journal Information: Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 23:5; ISSN INOMA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
ANTIFERROMAGNETISM
CARBON COMPOUNDS
CARBONATES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL REACTIONS
CHEMICAL VAPOR DEPOSITION
CRYSTAL MODELS
CURIE POINT
DECOMPOSITION
DEPOSITION
HEISENBERG MODEL
HETEROGENEOUS CATALYSIS
ION EXCHANGE
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATHEMATICAL MODELS
MECHANICS
NICKEL CARBONATES
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
PARAMAGNETISM
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PYROLYSIS
QUANTUM MECHANICS
SPIN
SURFACE COATING
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE