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 Bi1−xSmxFeO3 (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 th...

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Autores: Gil González, Eva, Perejón Pazo, Antonio, Sánchez Jiménez, Pedro Enrique, Hayward, Michel A., Criado Luque, José Manuel, Sayagués de Vega, María Jesús, Pérez Maqueda, Luis Allan
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/138328
Acceso en línea:https://hdl.handle.net/11441/138328
https://doi.org/10.1016/j.jallcom.2017.03.289
Access Level:acceso abierto
Palabra clave:Sm substituted BiFeO3
Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
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spelling Characterization of mechanosynthesized Bi1−xSmxFeO3 samples unencumbered by secondary phases or compositional inhomogeneityGil González, EvaPerejón Pazo, AntonioSánchez Jiménez, Pedro EnriqueHayward, Michel A.Criado Luque, José ManuelSayagués de Vega, María JesúsPérez Maqueda, Luis AllanSm substituted BiFeO3MultiferroicsMechanochemical processingStructure identificationPhase transitionsHigh-quality samples, in terms of phase purity and dielectric properties, of composition Bi1−xSmxFeO3 (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 Bi1−xSmxFeO3 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 BiFeO3. 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 Bi1-xSmxFeO3 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 BiFeO3.España, MINECO Projects CTQ2014-52763-C2-1-REspaña Junta Andalucía-FEDER TEP-1900 TEP-7858ElsevierQuímica InorgánicaMinisterio de Economía y Competitividad (MINECO). EspañaJunta de Andalucía2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/138328https://doi.org/10.1016/j.jallcom.2017.03.289reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésJournal of Alloys and Compounds, 711, 541-551.CTQ2014-52763-C2-1-RTEP-1900 TEP-7858https://doi.org/10.1016/j.jallcom.2017.03.289info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1383282026-06-17T12:51:07Z
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
Sm substituted BiFeO3
Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
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 Pazo, Antonio
Sánchez Jiménez, Pedro Enrique
Hayward, Michel A.
Criado Luque, José Manuel
Sayagués de Vega, María Jesús
Pérez Maqueda, Luis Allan
author Gil González, Eva
author_facet Gil González, Eva
Perejón Pazo, Antonio
Sánchez Jiménez, Pedro Enrique
Hayward, Michel A.
Criado Luque, José Manuel
Sayagués de Vega, María Jesús
Pérez Maqueda, Luis Allan
author_role author
author2 Perejón Pazo, Antonio
Sánchez Jiménez, Pedro Enrique
Hayward, Michel A.
Criado Luque, José Manuel
Sayagués de Vega, María Jesús
Pérez Maqueda, Luis Allan
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Química Inorgánica
Ministerio de Economía y Competitividad (MINECO). España
Junta de Andalucía
dc.subject.none.fl_str_mv Sm substituted BiFeO3
Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
topic Sm substituted BiFeO3
Multiferroics
Mechanochemical processing
Structure identification
Phase transitions
description High-quality samples, in terms of phase purity and dielectric properties, of composition Bi1−xSmxFeO3 (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 Bi1−xSmxFeO3 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 BiFeO3. 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 Bi1-xSmxFeO3 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 BiFeO3.
publishDate 2017
dc.date.none.fl_str_mv 2017
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/11441/138328
https://doi.org/10.1016/j.jallcom.2017.03.289
url https://hdl.handle.net/11441/138328
https://doi.org/10.1016/j.jallcom.2017.03.289
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of Alloys and Compounds, 711, 541-551.
CTQ2014-52763-C2-1-R
TEP-1900 TEP-7858
https://doi.org/10.1016/j.jallcom.2017.03.289
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
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 15,300719

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