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Structural and dielectric properties of the (Bi0.500Na0.500)0.920Ba0.065La0.010TiO3 lead-free ceramic system

Structural and dielectric properties of the (Bi 0.500 Na 0.500 ) 0.920 Ba 0.065 La 0.010 TiO 3 ceramic system have been investigated. The structural properties revealed, at room temperature, the coexistence of both rhombohedral (R3c) ferroelectric and tetragonal (P4bm) antiferroelectric phases. The...

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Published in:Ferroelectrics 2018-09, Vol.533 (1), p.85-91
Main Authors: Mendez-González, Y., Calderón-Piñar, F., Peláiz-Barranco, A., Pentón-Madrigal, A., Saint-Grégoire, P., Guerra, J. D. S.
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container_issue 1
container_start_page 85
container_title Ferroelectrics
container_volume 533
creator Mendez-González, Y.
Calderón-Piñar, F.
Peláiz-Barranco, A.
Pentón-Madrigal, A.
Saint-Grégoire, P.
Guerra, J. D. S.
description Structural and dielectric properties of the (Bi 0.500 Na 0.500 ) 0.920 Ba 0.065 La 0.010 TiO 3 ceramic system have been investigated. The structural properties revealed, at room temperature, the coexistence of both rhombohedral (R3c) ferroelectric and tetragonal (P4bm) antiferroelectric phases. The dielectric response has shown the presence of three anomalies in the whole analyzed temperature range, which have been associated to different phase transitions. The frequency dependent dielectric response has been evaluated for temperatures close (below) the first phase-transition peak. Results revealed a strong dielectric dispersion, which has been associated to an intrinsic conduction related to thermally activated polarons.
doi_str_mv 10.1080/00150193.2018.1470815
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source Taylor and Francis Science and Technology Collection
subjects Anomalies
Antiferroelectricity
Conduction
dielectric measurement
Dielectric properties
Dielectric strength
Electrical properties
Ferroelectric materials
Lead free
Lead-free piezoelectrics
Phase transitions
structural properties
Temperature
title Structural and dielectric properties of the (Bi0.500Na0.500)0.920Ba0.065La0.010TiO3 lead-free ceramic system
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