Theory of Mott insulators

Journal Article · Thu Jan 01 04:00:00 EST 1976 · Int. J. Quant. Chem., Symp.; (United States)

DOI:https://doi.org/10.1002/qua.560100845· OSTI ID:7057919

Brandow, B H

The main characteristics of Mott insulator materials are qualitatively explained by means of a suitable form of Hartree-Fock approximation. This can be regarded as an extension of the Slater antiferromagnetic band theory. Semiquantitative applications to NiO and CoO are described. The aspects discussed include the insulating gap, origin of the antiferromagnetic spin coupling, reasons for the validity of the crystal-field model, 3d bandwidth questions, and a survey of the basic microscopic mechanisms responsible for related insulator-metal transitions.

• Research Organization: Los Alamos Scientific Lab., NM
• OSTI ID: 7057919
• Journal Information: Int. J. Quant. Chem., Symp.; (United States), Journal Name: Int. J. Quant. Chem., Symp.; (United States) Vol. 10; ISSN IJQSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ANTIFERROMAGNETISM
CHALCOGENIDES
COBALT COMPOUNDS
COBALT OXIDES
COUPLING
CRYSTAL FIELD
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
ELECTRICAL PROPERTIES
EQUIPMENT
HARTREE-FOCK METHOD
INTERMEDIATE COUPLING
L-S COUPLING
MAGNETISM
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS