0.7BiFeO3-0.3BaTiO3-Y3Fe5O 12 composites with simultaneously improved electrical and magnetic properties

Abstract

0.7BiFeO3-0.3BaTiO3-Y3Fe5O 12 (BFO-BTO-YIG) composites were synthesized via a modified solid-sate route. The phase composition, microstructure, electrical, and magnetic properties of the composites were investigated. The results show that the BFO-BTO and YIG phases can coexist in the composites without any secondary phase. The electrical and magnetic properties BFO-BTO can be simultaneously improved by the introduction of YIG. Compared with BFO-BTO with weak magnetism, the 0.95(BFO-BTO)-0.05YIG composite shows an obviously enhanced ferromagnetic property with a Ms value of 1.4 emug, and a typical square polarization hysteresis loop with a Pr value of 19.3 μCcm 2, which is equal to that of BFO-BTO. © 2012 American Institute of Physics.