Bismuth Ferrite

Bismuth ferrite (BiFeO₃, also commonly referred to as BFO in Materials Science) is an inorganic chemical compound with perovskite structure and one of the most promising multiferroic materials. The room-temperature phase of BiFeO3 is classed as rhombohedral belonging to the space group R3c. It is synthesized in bulk and thin film form and both its antiferromagnetic (G type ordering) Néel temperature and ferroelectric Curie temperature are well above room temperature (approximately 653 K and 1100K, respectively). Ferroelectric polarization occurs along the pseudocubic 111 direction with a magnitude of 90–95 μC/cm2.