They prepared M-type calcium hexaferrite (CaM) by using extracts from Azadirachta indica and Murraya koenigii leaves. The presence of phytochemicals in the extracts played a crucial role in determining the structural, optical, microstructural, magnetic, and dielectric properties of the CaM hexaferrites. They used various characterization techniques like FT-IR, XRD, UV-Vis, SEM, VSM, and dielectric measurements to analyze the samples. The results showed that both extracts influenced the formation of a pure hexagonal phase and modified the surface morphology of the ferrites. The CaM powder prepared with Murraya koenigii leaves had a higher saturation magnetization compared to the one prepared with Azadirachta indica leaves. Both samples exhibited a magnetically soft nature with a multidomain structure. The energy bandgap was observed to be 2.01 eV. Additionally, the calcium ferrite synthesized with Murraya koenigii leaves had a maximum dielectric constant (ε’max) of approximately 25, while the one synthesized with Azadirachta indica leaves had ε’max of around 200 at a frequency of approximately 20 HZ.
DOI :- Article Investigation of structural, optical, magnetic, and dielectr...
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