Table of Contents
ISRN Ceramics
Volume 2012 (2012), Article ID 876123, 5 pages
http://dx.doi.org/10.5402/2012/876123
Research Article

Rietveld Structure Refinement and Cation Distribution of C r 𝟑 + Substituted Nanocrystalline Ni-Zn Ferrites

1Department of Physics, SMP College, Murum, Osmanabad 413605, India
2Spin Device Technology Center, Faculty of Engineering, Shinshu University, Nagano 380-8553, Japan
3Materials Research Laboratory, Shrikrishna Education Society's Srikrishna Mahavidyalaya, Gunjoti, Omerga, Osmanabad 413613, India
4Department of Physics, YC College, Tuljapur, Osmanabad 413 601, India

Received 7 April 2012; Accepted 10 July 2012

Academic Editors: M. A. Schiavon and W. Tseng

Copyright © 2012 A. A. Birajdar 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

Ferrite nanoparticles of N i 0 . 7 Z n 0 . 3 C r 𝑥 F e 2 𝑥 O 4 were prepared by a sol-gel autocombustion method. The prepared samples were shown to have a cubic spinel structure by applying the full pattern fitting of the Rietveld method. The unit cell dimension, discrepancy factor, and interatomic distance have been determined. As the Cr3+ content x increases, the unit cell dimensions and crystallite size are decreased. The IR spectra show two absorption bands in the wave number range of 400 to 600 cm−1.