Abstract
A solid solution of BaMnO3−δ and Bi0.5Na0.5TiO3 was prepared using a sol–gel method. X-ray diffraction analysis of Bi0.5Na0.5TiO3 − x BaMnO3−δ samples indicated a rhombohedral structure of Bi0.5Na0.5TiO3 materials during distortion due to the random distribution of Ba and Mn cations in the host lattice. The substitution of Ba and Mn at A- and B-sites in the perovskite structure of Bi0.5Na0.5TiO3 changed the optical band gap due to local defect and/or promotion of oxygen vacancies. The samples exhibited strong room temperature ferromagnetism, which overcame the weak ferromagnetism and diamagnetism of Bi0.5Na0.5TiO3 materials. Our study provided a flexible approach to integrate the ferromagnetism properties of ferroelectric materials.
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