Abstract
In this study, a highly crystalline bismuth ferrite (BFO) powder was synthesized using a novel, very simple, and cost-effective synthetic approach. It was demonstrated that the optimal annealing temperature for the preparation of highly-pure BFO is 650 °C. At lower or higher temperatures, the formation of neighboring crystal phases was observed. The thermal behavior of BFO precursor gel was investigated by thermogravimetric and differential scanning calorimetry (TG-DSC) measurements. X-ray diffraction (XRD) analysis and Mössbauer spectroscopy were employed for the investigation of structural properties. Scanning electron microscopy (SEM) was used to evaluate morphological features of the synthesized materials. The obtained powders were also characterized by magnetization measurements, which showed antiferromagnetic behavior of BFO powders.
Highlights
In the recent decades, bismuth ferrite (BFO, BiFeO3 ) has received great attention from the scientific community due to its outstanding physical properties
All chemicals and solvents were used without additional purification
It was determined that particles vary from 0.3 to 1.6 μm in size and 86% of all aggregate intosoftware
Summary
Bismuth ferrite (BFO, BiFeO3 ) has received great attention from the scientific community due to its outstanding physical properties. It is a material of interest due to its unique properties, one of which is undoubtedly its multiferroicity. BFO is the only single-phase perovskite compound that exhibits multiferroic behavior at room temperature, since it is simultaneously G-type antiferromagnetic and strongly ferroelectric [1]. BFO is a rhombohedrally distorted ABO3 perovskite-type compound, with R3c space group (#161) and hexagonal lattice parameters a = 5.58 Å and c = 13.87 Å [3]. Because of its multiferroic properties BFO is a very attractive material for use in modern technological devices
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