Thumbnail
Access Restriction
Open

Author Bharti, Chandrahas ♦ Choudhary, S. N. ♦ Sinha, T. P.
Source IACS Kolkata
Content type Text
Publisher Indian J. Phys.
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Ceramics ♦ Dielectric constant ♦ Curie temperature ♦ Relaxor
Abstract The relaxor ferroelectric lead iron tantalate, Pb(Fe0.5Ta0.5)O3 (PFT) is synthesized by Coulombiteprecursor method. The X-ray diffraction pattern of the sample at room temperature shows a cubic phase. Thefield dependence of dielectric response is measured in a frequency range 0.1 kHz – 1 MHz and in a temperaturerange from 173–373 K. The temperature dependence of permittivity (ε ′) shows broad maxima at variousfrequencies. The frequency dependence of the permittivity maximum temperature (Tm) has been modelled usingVogel-Fulcher relation.
Education Level UG and PG
Learning Resource Type Article
Journal Indian J Phys
Volume Number 83
Issue Number 4
Page Count 6
Starting Page 409
Ending Page 414