Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/20806 |
Resumo: | Electromechanical properties such as d(33) and strain are significantly enhanced at morphotropic phase boundaries (MPBs) between two or more different crystal structures. Many actuators, sensors and MEMS devices are therefore systems with MPBs, usually between polar phases in lead (Pb)-based ferroelectric ceramics. In the search for Pb-free alternatives, systems with MPBs between polar and non-polar phases have recently been theorized as having great promise. While such an MPB was identified in rare-earth (RE) modified bismuth ferrite (BFO) thin films, synthesis challenges have prevented its realization in ceramics. Overcoming these, we demonstrate a comparable electromechanical response to Pb-based materials at the polar-to-non-polar MPB in Sm modified BFO. This arises from 'dual' strain mechanisms: ferroelectric/ferroelastic switching and a previously unreported electric-field induced transition of an anti-polar intermediate phase. We show that intermediate phases play an important role in the macroscopic strain response, and may have potential to enhance electromechanical properties at polar-to-non-polar MPBs. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectricFIELD-INDUCED STRAINFREE PIEZOCERAMICSBIFEO3 CERAMICSELECTROMECHANICAL RESPONSEPIEZOELECTRIC PROPERTIESTITANATE CERAMICSBISMUTH FERRITETHIN-FILMSTRANSITIONBEHAVIORElectromechanical properties such as d(33) and strain are significantly enhanced at morphotropic phase boundaries (MPBs) between two or more different crystal structures. Many actuators, sensors and MEMS devices are therefore systems with MPBs, usually between polar phases in lead (Pb)-based ferroelectric ceramics. In the search for Pb-free alternatives, systems with MPBs between polar and non-polar phases have recently been theorized as having great promise. While such an MPB was identified in rare-earth (RE) modified bismuth ferrite (BFO) thin films, synthesis challenges have prevented its realization in ceramics. Overcoming these, we demonstrate a comparable electromechanical response to Pb-based materials at the polar-to-non-polar MPB in Sm modified BFO. This arises from 'dual' strain mechanisms: ferroelectric/ferroelastic switching and a previously unreported electric-field induced transition of an anti-polar intermediate phase. We show that intermediate phases play an important role in the macroscopic strain response, and may have potential to enhance electromechanical properties at polar-to-non-polar MPBs.NATURE PUBLISHING GROUP2017-12-07T20:00:03Z2016-01-01T00:00:00Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20806eng2045-232210.1038/srep19630Walker, JulianSimons, HughAlikin, Denis O.Turygin, Anton P.Shur, Vladimir Y.Kholkin, Andrei L.Ursic, HanaBencan, AndrejaMalic, BarbaraNagarajan, ValanoorRojac, Tadejinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-17T03:51:54ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
title |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
spellingShingle |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric Walker, Julian FIELD-INDUCED STRAIN FREE PIEZOCERAMICS BIFEO3 CERAMICS ELECTROMECHANICAL RESPONSE PIEZOELECTRIC PROPERTIES TITANATE CERAMICS BISMUTH FERRITE THIN-FILMS TRANSITION BEHAVIOR |
title_short |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
title_full |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
title_fullStr |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
title_full_unstemmed |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
title_sort |
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric |
author |
Walker, Julian |
author_facet |
Walker, Julian Simons, Hugh Alikin, Denis O. Turygin, Anton P. Shur, Vladimir Y. Kholkin, Andrei L. Ursic, Hana Bencan, Andreja Malic, Barbara Nagarajan, Valanoor Rojac, Tadej |
author_role |
author |
author2 |
Simons, Hugh Alikin, Denis O. Turygin, Anton P. Shur, Vladimir Y. Kholkin, Andrei L. Ursic, Hana Bencan, Andreja Malic, Barbara Nagarajan, Valanoor Rojac, Tadej |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Walker, Julian Simons, Hugh Alikin, Denis O. Turygin, Anton P. Shur, Vladimir Y. Kholkin, Andrei L. Ursic, Hana Bencan, Andreja Malic, Barbara Nagarajan, Valanoor Rojac, Tadej |
dc.subject.por.fl_str_mv |
FIELD-INDUCED STRAIN FREE PIEZOCERAMICS BIFEO3 CERAMICS ELECTROMECHANICAL RESPONSE PIEZOELECTRIC PROPERTIES TITANATE CERAMICS BISMUTH FERRITE THIN-FILMS TRANSITION BEHAVIOR |
topic |
FIELD-INDUCED STRAIN FREE PIEZOCERAMICS BIFEO3 CERAMICS ELECTROMECHANICAL RESPONSE PIEZOELECTRIC PROPERTIES TITANATE CERAMICS BISMUTH FERRITE THIN-FILMS TRANSITION BEHAVIOR |
description |
Electromechanical properties such as d(33) and strain are significantly enhanced at morphotropic phase boundaries (MPBs) between two or more different crystal structures. Many actuators, sensors and MEMS devices are therefore systems with MPBs, usually between polar phases in lead (Pb)-based ferroelectric ceramics. In the search for Pb-free alternatives, systems with MPBs between polar and non-polar phases have recently been theorized as having great promise. While such an MPB was identified in rare-earth (RE) modified bismuth ferrite (BFO) thin films, synthesis challenges have prevented its realization in ceramics. Overcoming these, we demonstrate a comparable electromechanical response to Pb-based materials at the polar-to-non-polar MPB in Sm modified BFO. This arises from 'dual' strain mechanisms: ferroelectric/ferroelastic switching and a previously unreported electric-field induced transition of an anti-polar intermediate phase. We show that intermediate phases play an important role in the macroscopic strain response, and may have potential to enhance electromechanical properties at polar-to-non-polar MPBs. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01T00:00:00Z 2016 2017-12-07T20:00:03Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/20806 |
url |
http://hdl.handle.net/10773/20806 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 10.1038/srep19630 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
NATURE PUBLISHING GROUP |
publisher.none.fl_str_mv |
NATURE PUBLISHING GROUP |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
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repository.mail.fl_str_mv |
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_version_ |
1777303532845662208 |