Table of Contents
Journal of Nanoparticles
Volume 2016 (2016), Article ID 4709687, 8 pages
http://dx.doi.org/10.1155/2016/4709687
Research Article

Structural, Electrical, Dielectric, and Magnetic Properties of Cd2+ Substituted Nickel Ferrite Nanoparticles

1Vivekanand Arts, Sardar Dalipsingh Commerce and Science College, Aurangabad 431001, India
2Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431001, India
3Department of Physics, P.G. Research Centre, Deogiri College, Aurangabad 431001, India

Received 10 October 2015; Revised 7 January 2016; Accepted 13 January 2016

Academic Editor: Raphael Schneider

Copyright © 2016 B. H. Devmunde et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the present investigation structural, electric, magnetic, and frequency dependent dielectric properties of ferrite nanoparticles (NPs) (where , , , and 0.8) prepared by sol-gel autocombustion method were studied. The crystallite size () (46.89~58.40 nm) was estimated from X-ray diffraction data with the postconfirmation of single phase spinel structure. Spherical shaped, fused grain nature with intergranular diffusion in NPs was observed in scanning electron micrographs. The value of loss tangent () decreases exponentially with an increasing frequency indicating normal Maxwell-Wagner type dielectric dispersion due to interfacial polarization. Decreasing values of Curie temperature () from 860°C to 566°C with increasing Cd2+ content in NPs were determined from AC-Susceptibility. Activation energy ranges within 0.03~0.15 eV. Decreasing magnetic saturation , coercivity , and magneton number values show the effect on nonmagnetic Cd2+ ions over magnetic Ni2+ and Fe ions.