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Browse Journals & Magazines > Applied Physics Letters ...> Volume:100 Issue:19 Help

Elastic, dielectric, and piezoelectric anomalies and Raman spectroscopy of 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3

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5 Author(s)
Damjanovic, Dragan ; Ceramics Laboratory, Swiss Federal Institute of Technology in Lausanne-EPFL, 1015 Lausanne, Switzerland ; Biancoli, Alberto ; Batooli, Leili ; Vahabzadeh, Amirhossein
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The solid solution 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3 (BCZT) is a promising lead-free piezoelectric material with exceptionally high piezoelectric coefficients. The strong response is related to structural instabilities close to ambient temperature. We report here on temperature-induced anomalies in the dielectric, piezoelectric, and elastic coefficients and Raman spectroscopy of ceramic BCZT. The data indicate ferroelectric-ferroelectric structural phase transitions in this material in addition to those previously reported. An anomaly is also observed above the Curie temperature TC and is associated with the loss of polar structure that persists thirty degrees above TC.

Published in:
Applied Physics Letters  (Volume:100 ,  Issue: 19 )

Date of Publication: May 2012

Page(s):
192907 - 192907-4
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.4714703
Product Type:
Journals & Magazines
Date of Current Version :
14 May 2012
Issue Date :
May 2012

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