Influence of spin orbit coupling and lanthanide contraction on the exchange interaction in rare earth garnets

Abstract

The exchange constants observed in the rare earth iron garnets, obtained from fitting magnetization and paramagnetic susceptibility as a function of temperature have been analysed in terms of Anderson's theory of superexchange. The transfer integrals and covalency parameters have been obtained for various rare earth ions overlapping with oxygen. © 1984 Indian Academy of Sciences.