Abstract
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.To download the article click on the link below:
http://onlinelibrary.wiley.com.sci-hub.tw/doi/10.1002/qua.560100845/abstract
0 Comments