Magnetic Properties and Synthesis of Ferrites
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Abstract
Abstract
Tri-valent (Nd³⁺ & Cr³⁺) Substituted Pb-M Hexaferrite(Pb0.8Nd0.2Fe12O19&Pb0.8Cr0.2Fe12O19) Solid Solution has been synthesized using Auto-Combustion synthesis approach and reported for tailored Crystalline Signature, Magnetic Investigations, enhanced Photoluminescence and Electric (ε', ε" & σac vs. Frequency at Room Temperature) properties. Hexagonal structural phase with space group P63/mmc No. 194 has been identified from Bragg reflection positioned at 2θ ~ 34.12 & 34.36 in Pb0.8Cr0.2Fe12O19&Pb0.8Pb0.2Fe12O19.Decreased Porosity with enlarged grain size and grain growth demonstrate densification and compactness of grain due to high temperature sintering identified from Micrographs recorded using Scanning Electron Microscope. Other crystalline signatures such as calculated crystallite size calculated using Debye Scherrer formula, Macro strain, Dislocation density have been stamped for successful synthesis of Nano sized hexagonal ceramic oxide. Least value of Macrostrain, Dislocation densitysignature for well-ordered crystalline lattice arrangement after substitution of with different ionic radii of substituent (Nd³⁺ & Cr³⁺) compared with Parent Metal ion (Pb2+) in PbFe12O19 M type hexaferrite. S- shaped M (Magnetization) vs. H (Applied External Magnetic Field) identified enhanced magnetic signature after substitution of (Nd³⁺ & Cr³⁺) with Parent Metal ion (Pb2+) in PbFe12O19 M type hexaferrite where at least coercive behavior confined soft ferrite nature (suitable for Temporary Magnet) suggests that prepared solid solutions crucial for storage devices based on (0 & 1) memory as well as for in transformers used in electrical devices whereas multi domain structural arrangement along with ferromagnetic behavior evident for < 1 square-ness ratio. Spin up and down coupling of Fe3+at octahedral and tetrahedral sites has been confirmed from variation in value of magnetic moment (ƞB) as substituent varied from Nd³⁺ to Cr³⁺. Shift in emission peak in luminescence spectra shows change in rate of recombination after emission whereas capacitive response studied using dielectric and conductivity spectroscopy shows that prepared Nano-Ceramic hexaferrite can be useful in Capacitive Applications
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@article{Ashwani2026valent,
title = {Tri-valent (Nd³? &Cr³?) Substituted Pb-M Hexaferrite for Structural, Magnetic, Electric & Photoluminescence Investigations},
author = {Mr. Ashwani},
journal = {International Journal for Research in Applied Science and Engineering Technology},
year = {2026},
doi = {10.22214/ijraset.2026.85045},
url = {https://doi.org/10.22214/ijraset.2026.85045}
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