Influence of cation substitution on dielectric response of single crystalline M-type hexaferrites

Substitution of one or two cations can change dramatically dielectric, magnetic or mechanical properties of the pure BaFe12O19 hexaferrite, including significant shift of Curie temperature, appearance of spin-lattice coupling and phase transitions. In this talk the dielectric response of a lead substituted barium hexaferrite will be discussed.