Magnetic anisotropy in Pb-substituted Eu3 Fe5 O12 films

Abstract

A large uniaxial magnetic anisotropy has been observed in (100) and (111) Pb-substituted Eu3 Fe5 O12 garnet films grown by the LPE technique from PbO:B2O3 fluxes. For a Pb content of about 5.0 wt% the uniaxial anisotropy was 1.9×105 erg/cm3 in films of (100) orientation and 0.5 × 105 erg/cm3 for (111) film orientations. This uniaxial anisotropy is shown to be induced by the Pb and is similar to the growth-induced anisotropy observed in mixed iron garnets.