Physics of the multi-functionality of lanthanum ferrite ceramics

摘要: In the present work, we have illustrated physics of multifunctional characteristics nano-crystalline LaFeO3 powder prepared using auto-combustion synthesis. The synthesized powders were phase pure and crystallized into centro-symmetric Pnma space group. temperature dependence dielectric constant exhibits maxima similar to that observed in ferroelectric ceramics with non-centrosymmetric point relaxation correlates well small polaron conduction. occurrence polarization hysteresis (with group) is thought be spin current induced type. canting Fe3+ spins induce weak ferromagnetism LaFeO3. Room saturation magnetization reported 3.0 emu/g. Due presence both ferromagnetic as ordering, behaves like a single multiferroic ceramics. magneto-electric coupling this system has ...