Cation Distributions in Ferrospinels. Theoretical

Abstract

The statistical thermodynamics underlying the distribution of cations over the tetrahedral and octahedral sites in ferrospinels is developed. The temperature dependence of the distribution law is analyzed by invoking the Debye approximation for the vibrational spectrum. The resultant equations permit the internal energy terms of interest to be deduced from measurements of magnetic moment and specific heats of various quenched samples.