Table of Contents
Indian Journal of Materials Science
Volume 2013, Article ID 350707, 7 pages
http://dx.doi.org/10.1155/2013/350707
Research Article

Contribution to Analysis of Co/Cu Substituted Ni-Zn Ferrites

1Department of Physics, Bhavan’s Vivekananda College, Sainikpuri, Secunderabad, Andra Pradesh 500094, India
2Department of Physics, Andhra University, Visakhapatnam, Andra Pradesh 530045, India
3Department of Natural Sciences, College of Natural and Computational Sciences, Wollega University, P.O. Box 395, Nekemte, Ethiopia
4Department of Physics, GITAM University, Visakhapatnam, Andra Pradesh 530045, India
5Department of Physics, RGU-IIIT Nuzvid, Nuzvid, Andhra Pradesh 521201, India

Received 13 July 2013; Accepted 12 September 2013

Academic Editors: A. Chatterji and A. Cremades

Copyright © 2013 G. S. V. R. K. Choudary 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 this communication, Co/Cu substituted Ni-Zn ferrites processed through sol-gel synthesis using polyethylene glycol (PEG) as a chelating agent are studied, intending to aid in understanding and choosing the optimum ferrite material for high frequency applications. Lattice constant and average crystallite size have been estimated from FWHM of the X-ray diffraction peaks, and these parameters are understood by considering the ionic radii of the substituted as well as the replacing ions. Observed variations in saturation magnetization and initial permeability for these ferrites have been explained on the basis of anisotropy contribution for cobalt and segregation of copper at grain boundaries evident from scanning electron micrographs.