Effect of BaTiO₃ concentration on structural and magnetic properties of mechanically activated BiFeO₃-BaTiO₃ system

In this research, the mechanical activation method is proposed as an alternative process of preparation of the (BiFeO₃)_1-x-(BaTiO₃)_x solid solutions with various concentrations of barium titanate (x = 0.1÷0.9). However, mechanical milling itself does not allow obtaining the desired products and additional thermal treatment is needed to complete the solid-state reaction. In the present studies, X-ray diffraction and ⁵⁷Fe Mössbauer spectroscopy were applied as complementary methods in order to study the structural and magnetic properties of materials. The investigations revealed that an increase of BaTiO₃ concentration causes changes in the crystalline and hyperfine magnetic structure of the studied (BiFeO₃)_1-x-(BaTiO₃)_x system.