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Characterization of Ferroelectric Properties of Bi4-xPrxTi3O12 Polycrystals

Published online by Cambridge University Press:  26 February 2011

Abril Munro ,
Jorge Mata ,
Eduardo Martínez  and
Jesus Siqueiros
Abril Munro
Affiliation:
amunro@ccmc.unam.mx, Centro de Investigación Científica y Estudios Superiores de Ensenada, Postgrado en Física de Materiales, CICESE-CCMC, Apdo. Postal 2732, Ensenada, Baja California, 22860, Mexico
Jorge Mata
Affiliation:
jmata@ccmc.unam.mx, Universidad Nacional Autónoma de México, Centro de Ciencias de la Materia Condensada, Apdo . Postal 2681, Ensenada, Baja California, 22800, Mexico
Eduardo Martínez
Affiliation:
guerra@ccmc.unam.mx, Universidad Nacional Autónoma de México, Centro de Ciencias de la Materia Condensada, Apdo. Postal 2681, Ensenada, Baja California, 22800, Mexico
Jesus Siqueiros
Affiliation:
jesus@ccmc.unam.mx, Universidad Nacional Autónoma de México, Centro de Ciencias de la Materia Condensada, Apdo. Postal 2681, Ensenada, Baja California, 22800, Mexico
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Abstract

Effects of Praseodymium doping on the ferroelectric properties of Bi4Ti3O12 were investigated using dense ceramics from room temperature to 730 °C. DRX and XPS studies shows that the structure can accept only 10% of praseodymium without the precipitation of second phases. Thermoelectric analysis and ferroelectric hysteresis measurements were performed and show that the incorporation of praseodymium modified the transition temperature Tc and slightly the polarization values. The incorporation of praseodymium resulted in a variation in the permittivity and in the remanent polarization (2Pr). The polarization characteristics in the samples doping were different to Bi4Ti3O12.

Keywords

ferroelectricdielectric propertiesx-ray photoelectron spectroscopy (XPS)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 966: Symposium T – Ferroelectrics and Multiferroics , 2006 , 0966-T07-09
Copyright
Copyright © Materials Research Society 2007

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References

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