Compositional dependence of cubic and uniaxial anisotropies in some mixed rare-earth garnets

Abstract

We have measured the cubic and growth‐induced uniaxial anisotropies of two series of bulk flux‐grown garnets, Gd_3−xEu_xFe₅O₁₂ and Y_3−xSm_xFe₅O₁₂, at room temperature. In both series, the cubic anisotropy is approximately a linear function of composition between the end members, while the uniaxial anisotropy varies quadratically with composition.