Multiferroic and structural transition properties of Bi1−xPrxFe0.95Mn0.05O3 thin films

Bi_1-xPr_xFe_0.95Mn_0.05O₃ (BPFMO) thin films were successfully deposited on Pt(111)/Ti/SiO₂/Si(100) substrates by spin coating with a sol-gel technology and rapid thermal annealing. The effects of Pr content on the microstructure, magnetic and multiferroic properties of thin films were investigated. The result of X-ray diffraction analysis shows that the BPFMO thin films have rhombohedral-to-tetragonal R3c→P4mm phase transition at x = 0.15. The Pr doping on the A-site of BiFeO₃ could induce the appearance of the spontaneous magnetization and polarization by the phase transition of rhombohedral-to-tetragonal. The BPFMO thin films with x = 0.2 exhibits the maximum remanent magnetization (2Mr) of 0.44 emu/g.