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Ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3}

Abstract

The ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3} ceramics have been investigated systematically. A high-temperature solid-state reaction technique was used to synthesize the compound. The formation of the compound was checked by an X-ray diffraction (XRD) technique. The dielectric permittivity and the loss tangent of the sample were measured in a frequency range from 1 kHz to 1 MHz at different temperatures (30-500 deg. C). A study on dielectric properties reveals the electrical relaxation phenomenon occurs in the material. The activation energy was calculated from the temperature variation of dc conductivity. Studies of frequency and temperature dependence of ac conductivity of the compound suggest that conduction process in the material is thermally activated.
Authors:
Singh, A K; Barik, Subrat K; [1]  Choudhary, R N.P. ,; [1]  Mahapatra, P K [2] 
  1. Department of Physics and Meteorology, Indian Institute of Technology, Kharagpur 721 302 (India)
  2. Department of Physics, Vidyasagar University, Midnapore 721 102 (India)
Publication Date:
Jun 24, 2009
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Alloys and Compounds; Journal Volume: 479; Journal Issue: 1-2; Other Information: DOI: 10.1016/j.jallcom.2008.12.130; PII: S0925-8388(09)00023-1; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Subject:
36 MATERIALS SCIENCE; ACTIVATION ENERGY; BARIUM COMPOUNDS; CERAMICS; DIELECTRIC MATERIALS; KHZ RANGE; MHZ RANGE; OXIDES; PERMITTIVITY; RELAXATION; STRONTIUM COMPOUNDS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TITANIUM COMPOUNDS; X-RAY DIFFRACTION
OSTI ID:
21307359
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0925-8388; JALCEU; TRN: NL09R9109051265
Availability:
Available from http://dx.doi.org/10.1016/j.jallcom.2008.12.130;INIS
Submitting Site:
NLN
Size:
page(s) 39-42
Announcement Date:
Jun 24, 2010

Citation Formats

Singh, A K, Barik, Subrat K, Choudhary, R N.P. ,, and Mahapatra, P K. Ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3}. Netherlands: N. p., 2009. Web. doi:10.1016/j.jallcom.2008.12.130.
Singh, A K, Barik, Subrat K, Choudhary, R N.P. ,, & Mahapatra, P K. Ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3}. Netherlands. https://doi.org/10.1016/j.jallcom.2008.12.130
Singh, A K, Barik, Subrat K, Choudhary, R N.P. ,, and Mahapatra, P K. 2009. "Ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3}." Netherlands. https://doi.org/10.1016/j.jallcom.2008.12.130.
@misc{etde_21307359,
title = {Ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3}}
author = {Singh, A K, Barik, Subrat K, Choudhary, R N.P. ,, and Mahapatra, P K}
abstractNote = {The ac conductivity and relaxation mechanism in Ba{sub 0.9}Sr{sub 0.1}TiO{sub 3} ceramics have been investigated systematically. A high-temperature solid-state reaction technique was used to synthesize the compound. The formation of the compound was checked by an X-ray diffraction (XRD) technique. The dielectric permittivity and the loss tangent of the sample were measured in a frequency range from 1 kHz to 1 MHz at different temperatures (30-500 deg. C). A study on dielectric properties reveals the electrical relaxation phenomenon occurs in the material. The activation energy was calculated from the temperature variation of dc conductivity. Studies of frequency and temperature dependence of ac conductivity of the compound suggest that conduction process in the material is thermally activated.}
doi = {10.1016/j.jallcom.2008.12.130}
journal = []
issue = {1-2}
volume = {479}
place = {Netherlands}
year = {2009}
month = {Jun}
}