Enhanced Ferromagnetic And Ferroelectric Properties Of La Doped Multiferroic Bi5fe0.5co0.5ti3o15 Ceramics

A novel four-layer Bi4.25La0.75Fe0.5Co0.5Ti3O15 (BLFCT) ceramics was synthesized via sintering the mixture of Fe2O3, Co2O3, Bi2O3 oxides and already-prepared Bi3.25La0.75Ti3O12 (BLT) powders. The ferromagnetic transition is seen at T-CM approximate to 210 degrees C in M-T curves. At room temperature, the remanent magnetization (2M(r)), and the coercive fields (2H(c)) in BLFCT samples were about 49.7 memu/g and 475 Oe, respectively. The remnant polarization (2P(r)) and the coercive field (2E(c)) were about 15.4 mu C/cm(2) and 129 kV/cm at 180 kV/cm, respectively.