Substitutions in manganese zinc ferrites

The effect of substitutions in manganese zinc ferrites Zn_xFe _y ²⁺ Mn_zFe₂O₄, (x+y+z=1) on the compensation pointT ₀ of the crystal anisotropy constants and on the shape of the permeability vs. temperature dependence has been related to the contenty of divalent iron ions. For small amountsy<0.15 a definite dependence betweeny and the reduced temperatureT ₀/T _c of the compensation point has been found, which is independent of the specific substitution. This enables the effect of any intralattice substitution on permeability, hysteresis, losses and 3-with exceptions—on the disaccommodation spectra to be estimated.