Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity

High-quality samples, in terms of phase purity and dielectric properties, of composition BiSmFeO (0.05 ≤ x ≤ 0.20) have for the first time been prepared by mechanosynthesis. Close inspection of the powder diffraction data, analysis via Rietveld refinement and TEM microscopy demonstrates that the BiS...

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Autores: Gil-González, Eva, Perejón, Antonio, Sánchez-Jiménez, Pedro E., Hayward, Michael A., Criado Luque, José Manuel, Sayagués, María Jesús, Pérez-Maqueda, Luis A.
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::c9fef446bc8569bb37f80f0718fc33eb
Acesso em linha:http://hdl.handle.net/10261/156945
Access Level:acceso abierto
Palavra-chave:Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
Sm substituted BiFeO3
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spelling Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneityGil-González, EvaPerejón, AntonioSánchez-Jiménez, Pedro E.Hayward, Michael A.Criado Luque, José ManuelSayagués, María JesúsPérez-Maqueda, Luis A.MultiferroicsMechanochemical processingStructure identificationPhase transitionsSm substituted BiFeO3High-quality samples, in terms of phase purity and dielectric properties, of composition BiSmFeO (0.05 ≤ x ≤ 0.20) have for the first time been prepared by mechanosynthesis. Close inspection of the powder diffraction data, analysis via Rietveld refinement and TEM microscopy demonstrates that the BiSmFeO samples contain only perovskite phases. Additionally, by a combination of Rietveld analysis, TEM, DSC, temperature-dependent XRD and permittivity data a tentative phase diagram has been proposed where the high temperature paraelectric phase Pnma has been confirmed for samarium substituted BiFeO. Regarding the physical properties, the samples resulted to be electrically homogenous and highly insulating at room temperature, suggesting that other sources of conductivity, such as mixed valence of Fe associated with possible oxygen non-stoichiometry, have been avoided during the samples synthesis. In spite of the high quality of the samples, the dielectric and magnetic behaviour of the BiSmFeO samples change only modestly on Sm substitution, with neither a great change in the resistivity or remnant magnetisation of Sm substituted samples in comparison with BiFeO.Peer ReviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720172017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/156945reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::c9fef446bc8569bb37f80f0718fc33eb2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
title Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
spellingShingle Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
Gil-González, Eva
Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
Sm substituted BiFeO3
title_short Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
title_full Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
title_fullStr Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
title_full_unstemmed Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
title_sort Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneity
dc.creator.none.fl_str_mv Gil-González, Eva
Perejón, Antonio
Sánchez-Jiménez, Pedro E.
Hayward, Michael A.
Criado Luque, José Manuel
Sayagués, María Jesús
Pérez-Maqueda, Luis A.
author Gil-González, Eva
author_facet Gil-González, Eva
Perejón, Antonio
Sánchez-Jiménez, Pedro E.
Hayward, Michael A.
Criado Luque, José Manuel
Sayagués, María Jesús
Pérez-Maqueda, Luis A.
author_role author
author2 Perejón, Antonio
Sánchez-Jiménez, Pedro E.
Hayward, Michael A.
Criado Luque, José Manuel
Sayagués, María Jesús
Pérez-Maqueda, Luis A.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
Sm substituted BiFeO3
topic Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
Sm substituted BiFeO3
description High-quality samples, in terms of phase purity and dielectric properties, of composition BiSmFeO (0.05 ≤ x ≤ 0.20) have for the first time been prepared by mechanosynthesis. Close inspection of the powder diffraction data, analysis via Rietveld refinement and TEM microscopy demonstrates that the BiSmFeO samples contain only perovskite phases. Additionally, by a combination of Rietveld analysis, TEM, DSC, temperature-dependent XRD and permittivity data a tentative phase diagram has been proposed where the high temperature paraelectric phase Pnma has been confirmed for samarium substituted BiFeO. Regarding the physical properties, the samples resulted to be electrically homogenous and highly insulating at room temperature, suggesting that other sources of conductivity, such as mixed valence of Fe associated with possible oxygen non-stoichiometry, have been avoided during the samples synthesis. In spite of the high quality of the samples, the dielectric and magnetic behaviour of the BiSmFeO samples change only modestly on Sm substitution, with neither a great change in the resistivity or remnant magnetisation of Sm substituted samples in comparison with BiFeO.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/156945
url http://hdl.handle.net/10261/156945
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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