Magnetic properties of BiFeO3 – BaTiO3 ceramics in the morphotropic phase boundary: A role of crystal structure and structural parameters

•The study describes the correlation between the type of lattice symmetry and structural parameters of the ceramic compounds (1-x)BiFeO3 -(x)BaTiO3 and the evolution of magnetic properties across the concentration driven structural transition from the rhombohedral to the cubic phase.•The obtained results reveal specific role of the oxygen octahedra tilting as the key factor determining the presence of non-zero remanent magnetization. A correlation between the crystal structure and magnetic properties of system (1-x)BiFeO3 – (x)BaTiO3 with compounds across the morphotropic phase boundary was studied using X-ray and neutron diffraction, magnetometry, and Mössbauer spectroscopy measurements. Increase in the dopants content leads to the structural transition from the rhombohedral phase to the cubic phase via a formation of the two-phase region (0.2