Structural, Thermal and Electrical Study of Multiferroic BiFeO3 Ceramic with Al3+ and Ba2+ Co-substitution

BiFe1-xAlxO3(x=0.05, 0.1) and BixBa1-xFe0.95Al0.05O3 (x=0.05, 0.07) ceramics were synthesized and their crystal structure, thermal and ferroelectric properties were investigated. X-ray diffraction and Raman data of the ceramics showed all the samples were rhombohedral with small crystal structure distortion. DSC results revealed the evolution of Neel Temperature (TN) by Al and Ba co-doping. The substitution of Al3+ at Fe site changes the TN significantly. Doping effects in terms of crystal structure, electrical property variation are discussed in this paper.