Analysis of the magnetic possessions of α-Fe2O3 and the stimulation of α-Fe2O3 by Zn doping at different weight ratios.

In recent years, the need for nanosized magnetic materials together with improved optical property has increased enormously. Pure and Zn-doped α-Fe₂O₃ nanoparticles at three different weight percentages were prepared by hydrothermal method. The synthesized samples were characterized through the spectrographic tools such as XRD, FT-IR, UV, VSM and SEM to study about the crystalline nature with its parameters, functional group, optical and magnetic behaviors and morphology, respectively. The minimum crystallite size of α-Fe₂O₃ nanoparticles is found to be 20 nm. The outcomes of FT-IR and UV–Vis reveal the presence of metal oxide stretching mode, with maximum optical bandgap energy for Fe₂O₃ doped with 1% of Zn of about 1.959 eV, respectively. Furthermore, the magnetic and morphological analyses show the synthesized nanoparticles have ferromagnetic nature with increased coercivity and are formed in quasi-spherical shape. The present work reports that this method of fabricating pure and Zn-doped α-Fe₂O₃ can be useful in making of better magnetic storage devices and also in resonance imaging sectors. [ABSTRACT FROM AUTHOR]