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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Anomaly in the conductivity relaxation parameters at the phase transition of ferroelectric materials: A time domain study

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Author(s):
Leyet, Y. [1] ; Guerrero, F. [1] ; Amorin, H. [2] ; Guerra, J. de Los S. [3] ; Eiras, J. A. [4]
Total Authors: 5
Affiliation:
[1] Univ Oriente, Dept Fis, Fac Ciencias Nat, Santiago De Cuba - Cuba
[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid - Spain
[3] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG - Brazil
[4] Univ Fed Sao Carlos, Dept Fis, Grp Ceram Ferroeletr, BR-13565670 Sao Carlos, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Applied Physics Letters; v. 97, n. 16 OCT 18 2010.
Web of Science Citations: 6
Abstract

The influence of the ferroelectric to paraelectric transition on the relaxation parameters of conductive processes in ferroelectric materials is studied in the time domain. Three well-known ferroelectric systems were chosen with transition temperatures in different regions, these are, high-temperature PbNb(2)O(6)-based ceramics; nanostructured Pb(Zr(0.6)Ti(0.4))O(3) ceramics; and submicron BaTiO(3). The thermal evolution of relaxation parameters shows clear anomalies in their typical behavior when conductivity processes arise in the temperature range where the ferroelectric transition takes place. The method here described allows obtaining information about the correlation between charge transport and the motion of the off-center ions at the phase transition. (C) 2010 American Institute of Physics. {[}doi: 10.1063/1.3505932] (AU)