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Effects of Mg2+ ion substitution on the structural and electric studies of spinel structure of Co1−xMgxFe2O4

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Abstract

In this work, we have prepared Mg substituted CoFe2O4 from the transition metals by Sol–Gel Auto combustion method for different concentration (0.00, 0.05, 0.10, 0.15, 0.20 and 0.30) the aqueous materials involved Cobalt Nitrate, Magnesium Nitrate, Ferric nitrate and used a citric acid as a fuel. The final product was calcinated at 850 °C. Powder XRD studies confirmed the crystal structure, FTIR revealed the presence of various functional groups, FE-SEM showed the morphology of the prepared sample. EDAX shows percentage of chemical composition in series of Co ferrites. Dielectric constant, AC Conductivity, Cole–Cole plots, Activation Energy were analysed for the prepared nanoparticles for various frequencies at different temperatures. The dielectric constant values are higher for Mg substituted CoFe2O4. The activation energies were also calculated which ranged from 0.1552 to 0.1753 eV for CoFe2O4 and Co1−xMgxFe2O4 materials.

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Authors and Affiliations

  1. Centre for Crystal Growth, School of Advanced Sciences, VIT University, Vellore, 632 014, India

    S. Gowreesan & A. Ruban Kumar

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  1. S. Gowreesan
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  2. A. Ruban Kumar
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Correspondence to A. Ruban Kumar.

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Gowreesan, S., Ruban Kumar, A. Effects of Mg2+ ion substitution on the structural and electric studies of spinel structure of Co1−xMgxFe2O4 . J Mater Sci: Mater Electron 28, 4553–4564 (2017). https://doi.org/10.1007/s10854-016-6091-z

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  • DOI: https://doi.org/10.1007/s10854-016-6091-z

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