Synthesis and characterization of Bismuth ferrite (BiFeO3) nanoparticles by solution evaporation method

• Bismuth ferrite magnetic material was synthesized by solution evaporation method.
• Bismuth ferrite shows ferromagnetic properties at room temperature.
• Influence of temperature and crystallite size on magnetic properties was observed.
• The magnetization was decreased as the temperature and crystallite size increased.
• The magnetic moments were found larger in the smaller crystalline size.

Single phase Bismuth ferrite (BiFeO3) with high magnetization and polarization was synthesized by solution evaporation method (SEM) at room temperature. The influence of temperature and size of nanoparticles on magnetic properties was studied. The prepared Bismuth ferrite (BiFeO3) was characterized by X-ray diffraction (XRD) to investigate the structure and size of crystal. The average crystallite size of nanoparticles (NPs) as calculated by X-ray diffraction (XRD) falls in the range of 22–31 nm. The crystallite size of Bismuth ferrite increased as the temperature varied from 450 °C to 650 °C. Magnetic properties were studied by using physical properties measurement system (PPMS). It was also observed that the magnetic properties were directly related to the size and temperature of Bismuth ferrite nanoparticles. It has been investigated that the magnetization was decreased as the temperature and crystallite size increased.