Abstract
Crystal-field and exchange parameters for KNiF3 are derived from APW band energies calculated by Mattheiss. Comparison with the results of previous molecular orbital calculations and experimental data demonstrates that band structure calculations provide a simple and effective way of determining localized interaction parameters. In this work the band and localized state energies are related using the 'decoupling transformation' method. This provides a complete parametrization of the Ni2+ 3d band in this case, for which the Slater-Koster method fails.

This publication has 17 references indexed in Scilit: