Enduring effect of rare earth (Nd3+) doping and y- radiation on electrical properties of nanoparticle manganese zinc ferrite

Rare earth (Nd3+) doped Manganese-Zinc Ferrite nanoparticles with composition Mn0.65Zn0.35Fe2-xNdxO4 (x = 0.04, 0.05 and 0.06) were prepared using combustion method of materials preparation. Formation of pure spinel phase was confirmed using X-ray diffraction (XRD) and Fourier transforms infra red s...

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Bibliographic Details
Published in:Journal of alloys and compounds 2017-11, Vol.723, p.266
Main Authors: Naik, Pranav P, Tangsali, RB
Format: Article
Language:English
Subjects:
Doping
Electrical properties
Electrical resistivity
Electron micrographs
Fourier transforms
Lattice parameters
Manganese
Manganese compounds
Nanoparticles
Neodymium
Permittivity
Photomicrographs
Radiation effects
Rare earth elements
Spinel
Studies
Trace elements
X-ray diffraction
Zinc ferrites
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Summary:Rare earth (Nd3+) doped Manganese-Zinc Ferrite nanoparticles with composition Mn0.65Zn0.35Fe2-xNdxO4 (x = 0.04, 0.05 and 0.06) were prepared using combustion method of materials preparation. Formation of pure spinel phase was confirmed using X-ray diffraction (XRD) and Fourier transforms infra red spectroscopy (FTIR). The samples were exposed to various doses of y-radiation (500Gy, 750Gy and 1000Gy) after recording the data on structural and electrical transport properties of as prepared samples, in order to study the effect of y-radiation on these properties of the nanoparticles. Lattice constant 'a' that showed a moderate increment with Nd3+ doping was found to show a further increase after y-radiation exposure with nearly a 30%-40% reduction in crystallite size. Transmission electron micrographs showed a decreasing trend of particle size that was nearly proportional to increasing dose of y-radiation. The samples which showed enhancement in resistivity profile with increasing Nd3+ concentration showed a reverse trend of decrease in the resistivity values with increasing y radiation dose thus contributing to the conduction process. The dielectric constant of Nd3+ doped samples showed a multifold increase in the dielectric constant with a further increase in its values for radiated samples, when referred to the values reported for undoped Mn-Zn nanoparticle ferrite materials.
ISSN:0925-8388
1873-4669