Structure, microstructure, magnetic and low temperature Mo?ssbauer spectroscopy studies of Bismuth substituted zinc ferrite composite

We address the modifications made to Bismuth(3 + )-substituted ZnFe2O4 composites in order to comprehend their structural, microstructural, and magnetic properties. Bi@ZnFe2O4 is produced using the solution combustion method and sintered at 500 degrees C for two hours. The X-ray diffraction (XRD) patterns of the generated samples exhibit cubic symmetry with spinel structure. The computation of structural parameters utilised fundamental formulas. The crystallite diameters of each sample were determined to be between 20 and 22 nm. The scanning electron micrographs of the samples clearly demonstrated the porous character of the specimens. HRTEM verifies that particles are significantly agglomerated. The TEM image of nanoparticles reveals that their sizes range between 26 and 28 nm.. At room temperature and temperature (low & high) dependently, 57Co in Rh matrix was employed as a -quanta source to demonstrate the Superparamagnetic nature of the samples. Bi3+ occupied the Td site, Zn the Oh site, and Co the Td and Oh sites in a ratio of 2:3. Using the cation occupancies, the observed magnetic properties of our Bi @ ZnFe2O4 composite may be described by Ne ' el's two sublattice model.

Automated summary

This study investigates the structural, microstructural, and magnetic property modifications in Bismuth(3 + )-substituted ZnFe2O4 composites. Bi@ZnFe2O4 is synthesized using the solution combustion method and sintered at 500 degrees C for two hours. XRD patterns confirm the cubic symmetry and spinel structure of the samples. Structural parameters are calculated using fundamental formulas. The samples exhibit porous character and significantly agglomerated particles, as revealed by SEM and HRTEM images. The magnetic properties of the composite are described by Neel's two sublattice model based on the cation occupancies.