1. Influence of Ce3+ and La3+ Substitution on Structural & Optical Parameters and Electrical Behavior on Mg-Zn Ferrites Synthesized via Co-precipitation method.
- Author
-
Haq, Muhammad Imran Ul, Rehman, Atta ur, Asghar, M., Nabi, Muhammad Ajaz Un, Amin, Nasir, Tahir, Sofia, and Arshad, Muhammad Imran
- Subjects
COPRECIPITATION (Chemistry) ,FERRITES ,MAGNETIC nanoparticles ,ELECTRICAL resistivity ,PERMITTIVITY ,DIELECTRIC loss ,CERIUM oxides - Abstract
The nanoparticle spinel ferrites Mg
0.5 Zn0.5 Cex Lax Fe2-2x O4 (x = 0.0, 0.0125, 0.025, 0.0375, 0.05) were synthesized by mean of co-precipitation method. These magnetic nanoparticles were sintered at 750 °C for 8 h. XRD patterns confirmed the formation of the cubic spinel structure of prepared nanoparticles. The lattice constant of nanoparticle ferrites increased, while crystallite size decreased with doping content (x). Pure ferrite sample has an optical bandgap of 2.61 eV, and it increases from 1.73 to 2.17 eV as concentration (x) is changed from 0.0125 to 0.05. The electrical dc resistivity is of the order of 1010 Ω cm for doping content (x) from 0 to 0.0375 and has a maximum value of 5.48617 × 1012 Ω cm for content x = 0.05. The Curie temperature (Tc ) decreased 433–373 K as concentration (x) was increased. The dielectric constant, dielectric loss, and impedance are reduced with the increase of frequency. The dielectric constant, as well as the dielectric loss diminished while impedance increased as doping of cerium and lanthanum, was increased. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF