Journal of Superconductivity and Novel Magnetism

, Volume 29, Issue 8, pp 2151–2157 | Cite as

Magnetic and Electrical Properties of Magnesium-Substituted Ni–Zn Ferrites

Original Paper
First Online:
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Abstract

The effect of magnesium substitution in Ni–Zn ferrites (Ni0.80−x Mg x Zn0.20Fe2 O 4, where x = 0, 0.10–0.50) was studied on its electrical and magnetic properties. Ni–Mg–Zn ferrites were synthesized by novel combustion method, followed by calcination at 900 ∘C. The X-ray diffraction (XRD) pattern shows that the prepared sample was a single-phase spinel cubic structure, and the calculated crystallite sizes were found to be in the range 44–48 nm. Fourier transform infrared spectroscopy (FTIR) spectra confirm the tetrahedral and octahedral modes of vibrations. The observed saturation magnetization values range from 37 to 63 emu/g for magnesium-added Ni–Zn ferrites. The increase in resistivity was observed with the addition of magnesium ions except for the concentration of x = 0.50. The change in dielectric behavior with respect to composition and frequency were studied.

Keywords

Ni–Mg–Zn ferrites Combustion method Magnetic properties Dielectric properties 
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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Department of Ceramic TechnologyAnna UniversityChennaiIndia

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