Table of Contents
Physics Research International
Volume 2011 (2011), Article ID 583420, 10 pages
http://dx.doi.org/10.1155/2011/583420
Research Article

Electrical Conductivity and Dielectric Properties of Bulk Glass V2O5 (ZnO, PbO) SrO FeO

1Physics Department, Faculty of Science in Damietta, Mansoura University, Damietta, Egypt
2ME Laboratory, Physics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt

Received 29 October 2010; Accepted 22 February 2011

Academic Editor: Anil Chourasia

Copyright © 2011 M. S. Aziz 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

The AC conductivity and dielectric parameters of the glassy system of (70-x) V2O5· x(Zn/Pb)· 10SrO · 20FeO (x = 0, 5, 10, and 15) glasses have been investigated. The frequency and temperature dependence of dielectric constant (ε) and dielectric loss (ε′′) is studied in the frequency range 100 Hz–5 MHz and in the temperature range 300–460 K. Dielectric dispersion is observed in all samples as Zn/Pb increase content in the (70-x)V2O5· x(Zn/Pb)·10SrO·20FeO systems. These results are explained on the basis of a Debye-type relaxation. It is also observed that the activation energy increases on increasing the Zn/Pb contents in this system.