High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu)
- Autores
- Larregola, Sebastian Alberto; Alonso, José A.; Sheptyakov, Denis; Algueró, Miguel; Muñoz, Angel; Pomjakushin, Vladimir; Pedregosa, Jose Carmelo
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The synthesis, crystal structure, and dielectric properties of four novel members of the family of double perovskites Pb2LnSbO6 are described. The roomtemperature crystal structures were refined from neutron powder diffraction (NPD) data in the monoclinic C2/c (No. 15) space group. They contain a completely ordered array of alternating LnO6 and SbO6 octahedra sharing corners, tilted in antiphase along the three pseudocubic axes, with a abb tilting scheme, which is very unusual in the crystallochemistry of perovskites. The lead atoms occupy highly asymmetric voids with 8-fold coordination due to the stereoactivity of the Pb2þ electron lone-pair. Several trends are observed for the entire family of compounds upon heating. The Ln = Lu, Yb, and Er oxides display three successive phase transitions in a narrow temperature range, as shown by differential scanning calorimetry (DSC) data, while the Ln = Ho shows only two transitions. Different crystal structure evolutions have been found from temperature-dependent NPD and DSC, following the space-group sequence C2/c f P21/n f R3 f Fm3mfor Ln = Lu and Yb, the sequence C2/c f unknown f P21/n f Fm3mfor Ln = Er, and C2/c f P21/n f Fm3mfor Ln = Ho. The Ln/Sb long-range ordering is preserved across the consecutive phase transitions. Dielectric permittivity measurements indicate the presence of a paraelectric/antiferroelectric transition (associated with the last structural transition), as suggested by the negative Curie temperature from the CurieWeiss fit of the reciprocal permittivity.
Fil: Larregola, Sebastian Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Área Química General e Inorgánica; Argentina
Fil: Alonso, José A.. Instituto de Ciencia de Materiales de Madrid; España
Fil: Sheptyakov, Denis. Paul Scherrer Institute; Suiza
Fil: Algueró, Miguel. Instituto de Ciencia de Materiales de Madrid; España
Fil: Muñoz, Angel. Universidad Carlos III de Madrid. Instituto de Salud; España
Fil: Pomjakushin, Vladimir. Paul Scherrer Institute; Suiza
Fil: Pedregosa, Jose Carmelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Área Química General e Inorgánica; Argentina - Materia
-
PEROVSKITES
PHASE TRANSITIONS
LEAD
ANTIFERROELECTRIC - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/268252
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High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu)Larregola, Sebastian AlbertoAlonso, José A.Sheptyakov, DenisAlgueró, MiguelMuñoz, AngelPomjakushin, VladimirPedregosa, Jose CarmeloPEROVSKITESPHASE TRANSITIONSLEADANTIFERROELECTRIChttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The synthesis, crystal structure, and dielectric properties of four novel members of the family of double perovskites Pb2LnSbO6 are described. The roomtemperature crystal structures were refined from neutron powder diffraction (NPD) data in the monoclinic C2/c (No. 15) space group. They contain a completely ordered array of alternating LnO6 and SbO6 octahedra sharing corners, tilted in antiphase along the three pseudocubic axes, with a abb tilting scheme, which is very unusual in the crystallochemistry of perovskites. The lead atoms occupy highly asymmetric voids with 8-fold coordination due to the stereoactivity of the Pb2þ electron lone-pair. Several trends are observed for the entire family of compounds upon heating. The Ln = Lu, Yb, and Er oxides display three successive phase transitions in a narrow temperature range, as shown by differential scanning calorimetry (DSC) data, while the Ln = Ho shows only two transitions. Different crystal structure evolutions have been found from temperature-dependent NPD and DSC, following the space-group sequence C2/c f P21/n f R3 f Fm3mfor Ln = Lu and Yb, the sequence C2/c f unknown f P21/n f Fm3mfor Ln = Er, and C2/c f P21/n f Fm3mfor Ln = Ho. The Ln/Sb long-range ordering is preserved across the consecutive phase transitions. Dielectric permittivity measurements indicate the presence of a paraelectric/antiferroelectric transition (associated with the last structural transition), as suggested by the negative Curie temperature from the CurieWeiss fit of the reciprocal permittivity.Fil: Larregola, Sebastian Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Área Química General e Inorgánica; ArgentinaFil: Alonso, José A.. Instituto de Ciencia de Materiales de Madrid; EspañaFil: Sheptyakov, Denis. Paul Scherrer Institute; SuizaFil: Algueró, Miguel. Instituto de Ciencia de Materiales de Madrid; EspañaFil: Muñoz, Angel. Universidad Carlos III de Madrid. Instituto de Salud; EspañaFil: Pomjakushin, Vladimir. Paul Scherrer Institute; SuizaFil: Pedregosa, Jose Carmelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Área Química General e Inorgánica; ArgentinaAmerican Chemical Society2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/268252Larregola, Sebastian Alberto; Alonso, José A.; Sheptyakov, Denis; Algueró, Miguel; Muñoz, Angel; et al.; High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu); American Chemical Society; Inorganic Chemistry; 50; 12; 4-2011; 5545-55570020-1669CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic200127ainfo:eu-repo/semantics/altIdentifier/doi/10.1021/ic200127ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:55Zoai:ri.conicet.gov.ar:11336/268252instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:59:55.32CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
title |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
spellingShingle |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) Larregola, Sebastian Alberto PEROVSKITES PHASE TRANSITIONS LEAD ANTIFERROELECTRIC |
title_short |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
title_full |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
title_fullStr |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
title_full_unstemmed |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
title_sort |
High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu) |
dc.creator.none.fl_str_mv |
Larregola, Sebastian Alberto Alonso, José A. Sheptyakov, Denis Algueró, Miguel Muñoz, Angel Pomjakushin, Vladimir Pedregosa, Jose Carmelo |
author |
Larregola, Sebastian Alberto |
author_facet |
Larregola, Sebastian Alberto Alonso, José A. Sheptyakov, Denis Algueró, Miguel Muñoz, Angel Pomjakushin, Vladimir Pedregosa, Jose Carmelo |
author_role |
author |
author2 |
Alonso, José A. Sheptyakov, Denis Algueró, Miguel Muñoz, Angel Pomjakushin, Vladimir Pedregosa, Jose Carmelo |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
PEROVSKITES PHASE TRANSITIONS LEAD ANTIFERROELECTRIC |
topic |
PEROVSKITES PHASE TRANSITIONS LEAD ANTIFERROELECTRIC |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The synthesis, crystal structure, and dielectric properties of four novel members of the family of double perovskites Pb2LnSbO6 are described. The roomtemperature crystal structures were refined from neutron powder diffraction (NPD) data in the monoclinic C2/c (No. 15) space group. They contain a completely ordered array of alternating LnO6 and SbO6 octahedra sharing corners, tilted in antiphase along the three pseudocubic axes, with a abb tilting scheme, which is very unusual in the crystallochemistry of perovskites. The lead atoms occupy highly asymmetric voids with 8-fold coordination due to the stereoactivity of the Pb2þ electron lone-pair. Several trends are observed for the entire family of compounds upon heating. The Ln = Lu, Yb, and Er oxides display three successive phase transitions in a narrow temperature range, as shown by differential scanning calorimetry (DSC) data, while the Ln = Ho shows only two transitions. Different crystal structure evolutions have been found from temperature-dependent NPD and DSC, following the space-group sequence C2/c f P21/n f R3 f Fm3mfor Ln = Lu and Yb, the sequence C2/c f unknown f P21/n f Fm3mfor Ln = Er, and C2/c f P21/n f Fm3mfor Ln = Ho. The Ln/Sb long-range ordering is preserved across the consecutive phase transitions. Dielectric permittivity measurements indicate the presence of a paraelectric/antiferroelectric transition (associated with the last structural transition), as suggested by the negative Curie temperature from the CurieWeiss fit of the reciprocal permittivity. Fil: Larregola, Sebastian Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Área Química General e Inorgánica; Argentina Fil: Alonso, José A.. Instituto de Ciencia de Materiales de Madrid; España Fil: Sheptyakov, Denis. Paul Scherrer Institute; Suiza Fil: Algueró, Miguel. Instituto de Ciencia de Materiales de Madrid; España Fil: Muñoz, Angel. Universidad Carlos III de Madrid. Instituto de Salud; España Fil: Pomjakushin, Vladimir. Paul Scherrer Institute; Suiza Fil: Pedregosa, Jose Carmelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Área Química General e Inorgánica; Argentina |
description |
The synthesis, crystal structure, and dielectric properties of four novel members of the family of double perovskites Pb2LnSbO6 are described. The roomtemperature crystal structures were refined from neutron powder diffraction (NPD) data in the monoclinic C2/c (No. 15) space group. They contain a completely ordered array of alternating LnO6 and SbO6 octahedra sharing corners, tilted in antiphase along the three pseudocubic axes, with a abb tilting scheme, which is very unusual in the crystallochemistry of perovskites. The lead atoms occupy highly asymmetric voids with 8-fold coordination due to the stereoactivity of the Pb2þ electron lone-pair. Several trends are observed for the entire family of compounds upon heating. The Ln = Lu, Yb, and Er oxides display three successive phase transitions in a narrow temperature range, as shown by differential scanning calorimetry (DSC) data, while the Ln = Ho shows only two transitions. Different crystal structure evolutions have been found from temperature-dependent NPD and DSC, following the space-group sequence C2/c f P21/n f R3 f Fm3mfor Ln = Lu and Yb, the sequence C2/c f unknown f P21/n f Fm3mfor Ln = Er, and C2/c f P21/n f Fm3mfor Ln = Ho. The Ln/Sb long-range ordering is preserved across the consecutive phase transitions. Dielectric permittivity measurements indicate the presence of a paraelectric/antiferroelectric transition (associated with the last structural transition), as suggested by the negative Curie temperature from the CurieWeiss fit of the reciprocal permittivity. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/268252 Larregola, Sebastian Alberto; Alonso, José A.; Sheptyakov, Denis; Algueró, Miguel; Muñoz, Angel; et al.; High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu); American Chemical Society; Inorganic Chemistry; 50; 12; 4-2011; 5545-5557 0020-1669 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/268252 |
identifier_str_mv |
Larregola, Sebastian Alberto; Alonso, José A.; Sheptyakov, Denis; Algueró, Miguel; Muñoz, Angel; et al.; High-Temperature Behavior and Polymorphism in Novel Members of the Perovskite Family Pb 2 LnSbO 6 (Ln = Ho, Er, Yb, Lu); American Chemical Society; Inorganic Chemistry; 50; 12; 4-2011; 5545-5557 0020-1669 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic200127a info:eu-repo/semantics/altIdentifier/doi/10.1021/ic200127a |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613774599782400 |
score |
13.070432 |