| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1571678 | Materials Characterization | 2010 | 6 Pages |
Abstract
The polycrystalline samples of Sr(Fe2/3W1/3)O3 (SFW) were prepared by a high-energy ball-milling followed by solid-state reaction technique. The X-ray structural analysis showed the formation of single-phase compound in the tetragonal system, which is a distorted structure of an ideal cubic perovskite. The temperature–frequency dependence of dielectric constant and loss tangent exhibited relaxation behavior of the compound. The studies of impedance parameters (Z′, Z″) as a function of temperature and frequency have confirmed the contribution of bulk resistance of SFW. The small value of activation energy of the compound (∼ 0.35 eV) can be explained by mixed ionic–polaronic conductivity mechanism.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
R.N.P. Choudhary, Dillip K. Pradhan, C.M. Tirado, G.E. Bonilla, R.S. Katiyar,