AC Conductivity and Impedance Properties of 0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 Ceramics

Banarji Behera; E. B. Araújo; R. N. Reis; J. D. S. Guerra

doi:10.1155/2009/361080

Advances in Condensed Matter Physics (Jan 2009)

AC Conductivity and Impedance Properties of 0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 Ceramics

Banarji Behera,
E. B. Araújo,
R. N. Reis,
J. D. S. Guerra

Affiliations

Banarji Behera: Departamento de Física e Química, Universidade Estadual Paulista (UNESP), Caixa Postal 31, 15385-000 Ilha Solteira, SP, Brazil
E. B. Araújo: Departamento de Física e Química, Universidade Estadual Paulista (UNESP), Caixa Postal 31, 15385-000 Ilha Solteira, SP, Brazil
R. N. Reis: Departamento de Física e Química, Universidade Estadual Paulista (UNESP), Caixa Postal 31, 15385-000 Ilha Solteira, SP, Brazil
J. D. S. Guerra: Grupo de Ferroelétricos e Materiais Multifuncionais, Instituto de Física, Universidade Federal de Uberlândia, 38400-902 Uberlâandia, MG, Brazil

DOI: https://doi.org/10.1155/2009/361080
Journal volume & issue: Vol. 2009

Abstract

Read online

The electrical properties of 0.65Pb(Mg1/3Nb2/3)O3-0.35(PbTiO3) ceramics over a wide range of frequencies (102–106 Hz) and temperatures (30–225∘C) were studied using impedance spectroscopy technique. The impedance and electric permittivity were strongly temperature and frequency dependent. The activation energy, calculated from the temperature dependence of AC conductivity of the ceramics was found to be ∼0.5 eV. The relaxation process in the ceramics was found to be of non-Debye type. The nature of Cole-Cole diagram reveals the contribution of grain (bulk) and grain boundary permittivity in the ceramics.

Published in Advances in Condensed Matter Physics

ISSN: 1687-8108 (Print); 1687-8124 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://onlinelibrary.wiley.com/journal/4042

About the journal