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Structural and Vibrational Properties of Ferroelectric Pb1-xSrxTiO3 Thin Films and Powders

Published online by Cambridge University Press:  11 February 2011

M. Jain ,
A. Savvinov ,
P. S. Dobal ,
S. B. Majumder ,
R. S. Katiyar  and
A. S. Bhalla
M. Jain
Affiliation:
Department of Physics, University of Puerto Rico, San Juan, PR 00931, USA
A. Savvinov
Affiliation:
Department of Physics, University of Puerto Rico, San Juan, PR 00931, USA
P. S. Dobal
Affiliation:
Department of Physics, University of Puerto Rico, San Juan, PR 00931, USA
S. B. Majumder
Affiliation:
Department of Physics, University of Puerto Rico, San Juan, PR 00931, USA
R. S. Katiyar
Affiliation:
Department of Physics, University of Puerto Rico, San Juan, PR 00931, USA
A. S. Bhalla
Affiliation:
Department of Physics, University of Puerto Rico, San Juan, PR 00931, USA
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Abstract

In this work we present the structural, and vibrational properties of ferroelectric Pb1-xSrxTiO3 (PST). Thin films of PST were prepared by using sol-gel technique for various compositions with x values ranging from 0.0–1.0. Respective compositions were also prepared in ceramic and powder forms using sol-gel and solid-state reaction methods. X-ray diffraction was used for the structural characterization of these materials. Raman spectroscopy was utilized to study the phases and lattice vibrational modes, especially the soft mode in PST compositions. The temperature dependence of the soft mode frequency for different PST compositions revealed that the phase transition temperatures increased with increasing Pb contents in PST system. Ferroelectric properties of the films were correlated with the substitution-induced changes in the material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 748: Symposium U – Ferroelectric Thin Films XI , 2002 , U3.17
Copyright
Copyright © Materials Research Society 2003

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References

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