Microstructures Associated with Dielectric and Magnetic Properties in (1-x)BiFeO3-xBaTiO3

摘要: We have investigated microstructures associated with the magnetic and dielectric properties of multiferroic mixed-perovskite compounds formula (1-x)BiFeO3-xBaTiO3 by transmission electron microscopy (TEM) combined conventional measurements. TEM observation revealed that there exist complicated ferroelectric (FE) domains 20–30 nm in size FE phase BiFeO3. It was also found that, an x=0.25 compound, a weak spontaneous magnetization appears at 20 K. From results X-ray diffraction experiments, it is suggested this closely decrease extent rhombohedral distortion partial substitution BaTiO3 for