Contribution of an extrinsic mechanism for the electrical polarization in BiMn2O5 ceramics


Autoria(s): Fier, I.; Chinaglia, D. L.; Walmsley, L.; Pereira, E. C.; Rabelo, A. C.; Freitas, R. G.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/12/2012

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

DC conductivity, frequency dependent dielectric constant and pyroelectric coefficients, obtained from thermal stimulated depolarization current curves, in BiMn2O5 ceramics in the range of temperatures from 10 K to 320 K are reported. The data could be explained if it is assumed that a dipole defect is formed due to an oxygen vacancy and two manganese ions which have their valence changed to accept an electron. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4769752]

Formato

5

Identificador

http://dx.doi.org/10.1063/1.4769752

Aip Advances. Melville: Amer Inst Physics, v. 2, n. 4, p. 5, 2012.

2158-3226

http://hdl.handle.net/11449/42476

10.1063/1.4769752

WOS:000312828700078

WOS000312828700078.pdf

Idioma(s)

eng

Publicador

American Institute of Physics (AIP)

Relação

Aip Advances

Direitos

openAccess

Tipo

info:eu-repo/semantics/article