Abstract
The mechanism of exchange interactions in Li-Al ferrites is examined along with the nature of the magnetic crystallographic anisotropy. Calculation from a modified statistical model and another from Wolf's model may be used with observed curves for the temperature dependence of the magnetization and the first magnetic crystalline anisotropy constant to obtain values for the exchange integrals and the spin-Hamiltonian parameters SHP for Fe3+. It is shown that the SHP are substantially influenced by the exchange interactions, and the concentration relationships cannot be explained within the framework of the ionic crystalline-field theory.
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