<abstract xmlns="http://www.w3.org/1999/xhtml">Synthesis of CoxMnyZnyFe2O4 (x = 0.1, 0.5, 0.9 and y = 0.45, 0.25, 0.05) nanocrystalline powders was done by chemical co-precipitation method. The crystal structure was determined by using X-ray diffraction (XRD) studies. The crystallite size and lattice parameters were calculated from the XRD data. The XRD results revealed that the crystallite size of the nanocrystalline powder was found to decrease from 37 nm to 28 nm with the substitution of cobalt. The effect of cobalt ions on the crystallization process, the lattice parameters and electrical properties of Mn–Zn ferrites has been also investigated. The AC conductivity increased with an increase in frequency but it decreased with an increase in cobalt content. The complex impedance analysis of the data showed that the resistive and capacitive properties of the Co–Mn–Zn ferrite are predominant due to the fact that the processes are associated with the grains and grain boundaries. The dielectric constant and dielectric loss dependence on doping level and frequency at room temperature were also studied.</abstract>

Synthesis of CoxMnyZnyFe2O4 (x = 0.1, 0.5, 0.9 and y = 0.45, 0.25, 0.05) nanocrystalline powders was done by chemical co-precipitation method. The crystal structure was determined by using X-ray diffraction (XRD) studies. The crystallite size and lattice parameters were calculated from the XRD data. The XRD results revealed that the crystallite size of the nanocrystalline powder was found to decrease from 37 nm to 28 nm with the substitution of cobalt. The effect of cobalt ions on the crystallization process, the lattice parameters and electrical properties of Mn–Zn ferrites has been also investigated. The AC conductivity increased with an increase in frequency but it decreased with an increase in cobalt content. The complex impedance analysis of the data showed that the resistive and capacitive properties of the Co–Mn–Zn ferrite are predominant due to the fact that the processes are associated with the grains and grain boundaries. The dielectric constant and dielectric loss dependence on doping level and frequency at room temperature were also studied.

Synthesis, investigation on structural and electrical properties of cobalt doped Mn–Zn ferrite nanocrystalline powders

Department of Physics, Mount Zion College of Engineering and Technology, Pudukkottai-622507, India

Department of Physics, Anna University Chennai: University College of Engineering-Pattukkottai, Rajamadam-614701, India

Department of Chemistry, Easwari Engineering College, Ramapuram, Chennai-600089, India

Department of Chemistry, Anna University Chennai: University College of Engineering-Pattukkottai, Rajamadam-614701, India

Advanced Functional Materials Laboratory, Department of Physics, National Institute of Technology, Tiruchirappalli-620015, India

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Synthesis of CoxMnyZnyFe2O4 (x = 0.1, 0.5, 0.9 and y = 0.45, 0.25, 0.05) nanocrystalline powders was done by chemical co-precipitation method. The crystal...

Synthesis, investigation on structural and electrical properties of cobalt doped Mn–Zn ferrite nanocrystalline powders

Article Category: Research Article

Published Online: Jun 18, 2016

Page range: 344 - 353

Received: Aug 06, 2015

Accepted: Feb 24, 2016

DOI: https://doi.org/10.1515/msp-2016-0046

Keywords
nanoferrites, cobalt substituted Mn–Zn ferrite, Co-precipitation, magnetic nanoparticle, dielectric constant

© Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Synthesis, investigation on structural and electrical properties of cobalt doped Mn–Zn ferrite nanocrystalline powders

Article Category: Research Article

Published Online: Jun 18, 2016

Page range: 344 - 353

Received: Aug 06, 2015

Accepted: Feb 24, 2016

DOI: https://doi.org/10.1515/msp-2016-0046

Keywordsnanoferrites, cobalt substituted Mn–Zn ferrite, Co-precipitation, magnetic nanoparticle, dielectric constant

© Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
nanoferrites, cobalt substituted Mn–Zn ferrite, Co-precipitation, magnetic nanoparticle, dielectric constant