Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3

We study the phase transition behavior of the ferroelectric BaTi0.8Zr0.2O3 in the paraelectric region. The temperature dependencies of thermal, polar, elastic and dielectric properties indicate the presence of local structures above the paraelectric-ferroelectric transition temperature Tc = 292 K. T...

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Autores: Aktas, Oktay, Romero Landa, Francisco Javier, He, Zhengwang, Linyu, Gan, Ding, Xiangdong, Martín Olalla, José María, Gallardo Cruz, María del Carmen, Lookman, Turab
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/157701
Acceso en línea:https://hdl.handle.net/11441/157701
https://doi.org/10.1063/5.0195017
Access Level:acceso abierto
Palabra clave:remnan polarization
resonant piezoelectric spectroscopy
entropy
Curie-Weiss law
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repository_id_str
spelling Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3Aktas, OktayRomero Landa, Francisco JavierHe, ZhengwangLinyu, GanDing, XiangdongMartín Olalla, José MaríaGallardo Cruz, María del CarmenLookman, Turabremnan polarizationresonant piezoelectric spectroscopyentropyCurie-Weiss lawWe study the phase transition behavior of the ferroelectric BaTi0.8Zr0.2O3 in the paraelectric region. The temperature dependencies of thermal, polar, elastic and dielectric properties indicate the presence of local structures above the paraelectric-ferroelectric transition temperature Tc = 292 K. The non-zero remnant polarization is measured up to a characteristic temperature T* ~350 K, which coincides with the temperature where the dielectric constant deviates from Curie-Weiss law. Resonant Piezoelectric Spectroscopy shows that DC field-cooling above Tc using fields smaller than the coercive field leads to an elastic response and remnant piezoelectricity below T*, which likely corresponds to the coherence temperature associated with polar nanostructures in ferroelectrics. The observed remnant effect is attributed to the reorientation of polar nanostructures above Tc.VI Plan Propio de la Universidad de SevillaVII Plan Propio de Investigación de la Universidad de SevillaAmerican Institute of PhysicsFísica de la Materia CondensadaNatural National Science Foundation of China (NSFC)2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/157701https://doi.org/10.1063/5.0195017reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésApplied Physics Letters, 124 (19), 192901.5185041052051931004https://doi.org/10.1063/5.0195017info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1577012026-06-17T12:51:07Z
dc.title.none.fl_str_mv Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
title Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
spellingShingle Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
Aktas, Oktay
remnan polarization
resonant piezoelectric spectroscopy
entropy
Curie-Weiss law
title_short Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
title_full Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
title_fullStr Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
title_full_unstemmed Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
title_sort Phase transition and polar cluster behavior above Curie temperature in ferroelectric BaTi0.8Zr0.2O3
dc.creator.none.fl_str_mv Aktas, Oktay
Romero Landa, Francisco Javier
He, Zhengwang
Linyu, Gan
Ding, Xiangdong
Martín Olalla, José María
Gallardo Cruz, María del Carmen
Lookman, Turab
author Aktas, Oktay
author_facet Aktas, Oktay
Romero Landa, Francisco Javier
He, Zhengwang
Linyu, Gan
Ding, Xiangdong
Martín Olalla, José María
Gallardo Cruz, María del Carmen
Lookman, Turab
author_role author
author2 Romero Landa, Francisco Javier
He, Zhengwang
Linyu, Gan
Ding, Xiangdong
Martín Olalla, José María
Gallardo Cruz, María del Carmen
Lookman, Turab
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Física de la Materia Condensada
Natural National Science Foundation of China (NSFC)
dc.subject.none.fl_str_mv remnan polarization
resonant piezoelectric spectroscopy
entropy
Curie-Weiss law
topic remnan polarization
resonant piezoelectric spectroscopy
entropy
Curie-Weiss law
description We study the phase transition behavior of the ferroelectric BaTi0.8Zr0.2O3 in the paraelectric region. The temperature dependencies of thermal, polar, elastic and dielectric properties indicate the presence of local structures above the paraelectric-ferroelectric transition temperature Tc = 292 K. The non-zero remnant polarization is measured up to a characteristic temperature T* ~350 K, which coincides with the temperature where the dielectric constant deviates from Curie-Weiss law. Resonant Piezoelectric Spectroscopy shows that DC field-cooling above Tc using fields smaller than the coercive field leads to an elastic response and remnant piezoelectricity below T*, which likely corresponds to the coherence temperature associated with polar nanostructures in ferroelectrics. The observed remnant effect is attributed to the reorientation of polar nanostructures above Tc.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/157701
https://doi.org/10.1063/5.0195017
url https://hdl.handle.net/11441/157701
https://doi.org/10.1063/5.0195017
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Applied Physics Letters, 124 (19), 192901.
51850410520
51931004
https://doi.org/10.1063/5.0195017
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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