Abstract
A Thermally Stimulated Current in paraelectric barium-strontium titanate ceramics doped with iron up to 1% was studied in the range above the room temperature. Two TSC peaks, A and B, was observed: The peak A lied around at 90°C, the activation energy being 0.68 eV, whereas the peak B was found around at 130°C with the activation energy of 0.97 eV and regarded as due to migration of oxygen vacancies. These results suggest that the asymmetric hysteresis property in iron-doped ferroelectric ceramics may be brought about from the same charges.