2231–4202  (Print)                
2249–9970  (Online)             
Peer Reviewed and Refereed Journal

JPAST is a Peer Reviewed & Refereed biannual multidisciplinary journal starting from July 2011. Articles are invited for Dec 23 issue.
Volume 4, Issue 2, Pages 25-30, July 2014

Electrical Properties of BiFeO3 – BaTiO3 Ceramics

S. Shankar1 and Manish Kumar2, *

1 Department of Physics, ARSD college, University of Delhi, New Delhi, India.

2,* Department of Ceramic Engineering, IIT, Banaras Hindu University, Varanasi, India.

BiFeO3– BaTiO3 ceramicshave been synthesized via solid state reaction method. The X-ray studies of structural parameters reveal that BiFeO3– BaTiO3 (BFO-BT) solid solutions undergo structural transformations from rhombhohedral to cubic system. The unit cell dimensions increases with higher doping of higher ionic radii dopant (BT). The electrical properties for different composition x=0.10,0.15 and 0.30 in (1-x)BFO-xBT ceramics were studied in the frequency range 1kHz-1MHz at room temperature. It is found that the BFO with higher BT concentrations show higher electrical resistivity as well as capacitance. The decrease in electrical resistance and capacitance has been observed with the increase of frequency of the applied field. The larger dispersion in resistivity is due to dominance of intra-well hopping over inter-well hopping indicating a strong dependence of material properties on BT doping.

Keywords: Capacitance. Resistivity. X-ray diffraction. SEM.

Full Paper

Copyright ©2011 NLSS all rights reserved Website Designed & Website Developed By Sunisht Technologies