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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.)

Relaxor ferroelectric behavior: An approach considering both the dipolar and electrical conductivity contributions

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Author(s):
Carreras-Casas, C. [1] ; Garcia-Zaldivar, O. [1] ; Pelaiz-Barranco, A. [1] ; Gonzalez-Abreu, Y. [1] ; Calderon-Pinar, F. [1] ; Guerra, J. D. S. [2]
Total Authors: 6
Affiliation:
[1] Univ La Habana, Inst Ciencia & Tecnol Mat, Grp Mat Ferro, Fac Fis, Havana 10400 - Cuba
[2] Univ Fed Uberlandia, Inst Fis, Grp Ferroeletr & Mat Multifuncionais, BR-38408100 Uberlandia, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF ADVANCED DIELECTRICS; v. 11, n. 03 JUN 2021.
Web of Science Citations: 0
Abstract

The relaxor behavior of PLZT ferroelectric ceramics has been analyzed in a wide frequency and temperature ranges, below and above the temperature for the formation of the so-called polar nano-regions (PNRs). An approximation to the dynamical behavior of the PNRs has been discussed using Cole-Cole's relaxation model and Jonscher's Universal Relaxation Law. The analysis considers both the dipolar contribution and those ones associated with DC and AC electric conductivities, this latter not being previously reported in the literature for relaxor materials. The effectiveness of the developed model has been verified from the agreement between the experimental data and the theoretical calculations. This study also offers an indirect method to predict the DC component of the electrical conductivity. (AU)

FAPESP's process: 18/24352-7 - Development and Study of Electroceramic Materials with Technological Interest
Grantee:Antônio Carlos Hernandes
Support type: Research Grants - Visiting Researcher Grant - Brazil