Synthesis, structural and electrical investigations of Ba0.9Mn0.1Fe12O19 hexaferrite NPs

Abstract

The family of barium hexaferrite BaFe12O19 stand out for the magnetic catalytic applications as it has a absorbance magnitude to a whole range in the visible light; chemical stability, magnetic properties and magnetodielectric characteristics as well. In this work, we have prepared BaFe12O19 hexaferrite, doped with a divalent Mn2+ ion via sol-gel auto- combustion method using C6H8O7 as a fuel. The synthesized Ba0.9Mn0.1Fe12O19 hexaferrite nanoparticles were characterized by XRD, Infra-Red spectroscopy (IR) approach for the structural investigation and phase purity. The XRD pattern scrutiny confirms the formation of a single-phase M-type hexagonal crystal structure of Ba0.9Mn0.1Fe12O19. The lattice constant (a), lattice constant (c), and unit cell volume (V) was resolved using unique XRD data. The crystallite size was obtained through Debye-Scherrer's formula indicates the nanocrystalline nature of the Ba0.9Mn0.1Fe12O19 hexaferrite. IR spectra shows the formation of two main absorption bands near 574.79 cm-1; 574.07 cm−1 and 425.86 cm−1 which are characterized to the formation of Ba0.9Mn0.1Fe12O19 nanoparticles. DC-electrical resistivity was in well correlation with the reported literature to explain the electrical properties of Mn2+ loaded barium hexaferrite NPs.