Table of Contents
Indian Journal of Materials Science
Volume 2013 (2013), Article ID 910762, 7 pages
http://dx.doi.org/10.1155/2013/910762
Research Article

Synthesis and Characterization of Lithium-Substituted Cu-Mn Ferrite Nanoparticles

1Department of Physics, Manarat Dhaka International College, Dhaka 1212, Bangladesh
2Department of Arts and Sciences, Ahsanullah University of Science and Technology, Dhaka 1208, Bangladesh

Received 5 July 2013; Accepted 29 August 2013

Academic Editors: H. Leiste and D. L. Sales

Copyright © 2013 M. A. Mohshin Quraishi and M. H. R. Khan. 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

The effect of Li substitution on the structural and magnetic properties of LixCu0.12Mn0.88−2xFe2+xO4 (x = 0.00, 0.10, 0.20, 0.30, 0.40, and 0.44) ferrite nanoparticles prepared by combustion technique has been investigated. Structural and surface morphology have been studied by X-ray diffractometer (XRD) and high-resolution optical microscope, respectively. The observed particle size of various LixCu0.12Mn0.88−2xFe2+xO4 is found to be in the range of 9 nm to 30 nm. XRD result confirms single-phase spinel structure for each composition. The lattice constant increases with increasing Li content. The bulk density shows a decreasing trend with Li substitution. The real part of initial permeability () and the grain size (D) increase with increasing Li content. It has been observed that the higher the is, the lower the resonance frequency in LixCu0.12Mn0.88−2xFe2+xO4 ferrites is.