Molecular-field coefficients of Ti4+- and Zn2+- substituted lithium ferrites

By empirical methods similar to those outlined previously for the iron garnets, molecular-field coefficients are reported for the complicated LiTiZn ferrite system. As in the case of the garnets, the intrasublattice coefficients NAA and NBB are linearly dependent on the Ti4+ and Zn2+ concentrations, but the intersublattice coefficient NAB has a quadratic dependence on the Ti4+ substitutions. Where possible, the computed results are compared with experiment, and the agreement is found to be good over the ranges 0≤t≤0.9 and 0≤z≤0.4.