DIELECTRIC AND IMPEDANCE STUDIES ON BIFEO3-BATIO3 SOLID-SOLUTIONS

xBiFeO(3)-(1-x)BaTiO3 form substitutional ferroelectromagnetic solid s olutions with the rhomobohedral distortion up to 67% of BiFeO3. The pa per reports data on phase formation, electrical conductivity and diele ctric constant as a function of temperature and frequency for the samp les with x = 0.9 and 0.8 which are isostructural to BiFeO3. The conduc tivity is found to be dependent on both frequency and temperature in t he range 30 to 400 degrees C. The temperatures of dielectric anomalies are found to be lower than that of BiFeO3. The complex impedance stud ies indicate relaxation effects.