Thermally stimulated processes in samarium-modified lead titanate ferroelectric ceramics

The thermally stimulated processes in a samarium-modified lead titanate ferroelectric system are analyzed from the thermally stimulated depolarization discharge current. The discharge due to the space charge injected during the poling process, the pyroelectric response and a conduction process relat...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2013-08, Vol.112 (2), p.419-423
Main Authors: Peláiz-Barranco, A., García-Wong, A. C., González-Abreu, Y., Gagou, Y., Saint-Grégoire, P.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Condensed Matter
Condensed Matter Physics
Discharge
Ferroelectric materials
Ferroelectricity
Lead titanates
Machines
Manufacturing
Materials Science
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Polarization
Processes
Space charge
Surfaces and Interfaces
Thin Films
Vacancies
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Summary:The thermally stimulated processes in a samarium-modified lead titanate ferroelectric system are analyzed from the thermally stimulated depolarization discharge current. The discharge due to the space charge injected during the poling process, the pyroelectric response and a conduction process related to oxygen vacancies are evaluated considering a theoretical decomposition by using a numerical method. The pyroelectric response is separated from other components to evaluate the polarization behavior and some pyroelectric parameters. High remanent polarization, pyroelectric coefficient and merit figure values are obtained at room temperature.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-012-7421-5