Investigation of the conduction processes in PZT-based multiferroics: Analysis from Jonscher's formalism

The conductive processes in multiferroic ceramic composites based on PbZr0.65Ti0.35O3 (PZT) and BaFe12O19 (BaM), synthesized by the conventional solid‐state reaction method, have been investigated. The DC and AC electrical conductivities have been analyzed in a wide temperature and frequency range a...

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Published in:Physica Status Solidi. B: Basic Solid State Physics 2014-05, Vol.251 (5), p.1020-1027
Main Authors: Guerra, J. D. S., Portugal, R. J., Silva, A. C., Guo, R., Bhalla, A. S.
Format: Article
Language:English
Subjects:
ceramic materials
Ceramics
conduction mechanisms
Electrical properties
Electrical resistivity
ferroelectrics
Formalism
Frequency ranges
Lead zirconate titanates
multiferroics
Resistivity
Solid state physics
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description The conductive processes in multiferroic ceramic composites based on PbZr0.65Ti0.35O3 (PZT) and BaFe12O19 (BaM), synthesized by the conventional solid‐state reaction method, have been investigated. The DC and AC electrical conductivities have been analyzed in a wide temperature and frequency range and the influence of the BaM content on the electrical properties of the PZT–xBaM composites has been taken into account. It has been observed that the inclusion of the BaM in the PZT ferroelectric matrix promotes conduction mechanisms with magnetic‐order characteristics on the ceramics, which were related to doubly ionized oxygen vacancies, superexchange, and double‐exchange‐type interactions. The obtained results are discussed in the framework of Jonscher's formalism.
doi_str_mv 10.1002/pssb.201350336
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subjects ceramic materials
Ceramics
conduction mechanisms
Electrical properties
Electrical resistivity
ferroelectrics
Formalism
Frequency ranges
Lead zirconate titanates
multiferroics
Resistivity
Solid state physics
title Investigation of the conduction processes in PZT-based multiferroics: Analysis from Jonscher's formalism
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