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Temperature and frequency dependence of complex impedance parameters of microwave sintered NiMg ferrites

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Abstract

The Ni1-xMgxFe2O4 (x = 0.0–1.0) are synthesized by microwave solid-state reaction method. The pure phases are formed at an operating temperature of 1000 °C/30 min. The morphology is analyzed by scanning electron microscope. The effect of temperature and frequency on complex impedance (Z*) is investigated. The Arrhenius plots are drawn to find the activation energies (E1 and E2) of NiMg ferrites.

Relaxation behavior of Z′, Z″ vs. frequency and Arrhenius plots of x = 0.5 at selected Kelvin temperatures

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Acknowledgements

I am thankful to Dr. W. Madhuri, SAS, VIT University, Vellore, for synthesis facility, IISC-Bangalore for providing SEM facilities.

Funding

This work was financially supported by DRDO Project, No. ERIP/EP/1103015/M/01/1484/ dtd.20.06.13, New Delhi.

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Authors and Affiliations

  1. Department of Physics, GITAM Deemed to be University, Bangalore, India

    K. Chandra Babu Naidu

  2. Department of Physics, JNTUCEA, Anantapuramu, AP, India

    N. Suresh Kumar

  3. School of Applied Sciences, REVA University, Bangalore, India

    G. Ranjith Kumar & S. Naresh Kumar

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  1. K. Chandra Babu Naidu
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  2. N. Suresh Kumar
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  3. G. Ranjith Kumar
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Correspondence to K. Chandra Babu Naidu.

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Chandra Babu Naidu, K., Suresh Kumar, N., Ranjith Kumar, G. et al. Temperature and frequency dependence of complex impedance parameters of microwave sintered NiMg ferrites. J Aust Ceram Soc 55, 541–548 (2019). https://doi.org/10.1007/s41779-018-0260-x

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  • DOI: https://doi.org/10.1007/s41779-018-0260-x

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