Structural and Magnetic Properties of a BaFe12– xScxO19 Substituted Hexagonal Ferrite

Resumo

Abstract—We have studied the effect of Sc³⁺ substitution for Fe³⁺ ions on the magnetic properties and crystal structure of BaFe_{12– x}Sc_xO₁₉ hexaferrites. Based on Mössbauer spectroscopy data, we have assessed the distribution of scandium ions over sublattices and their effect on magnetic characteristics of the materials. The specific magnetization and coercive force of the ferrites have been shown to depend on the location and concentration of scandium ions in the crystal structure. The hexaferrite with x > 0.6 has been found to have a noncollinear magnetic structure.