Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution

16th International Conference on X-ray Absorption Fine Structure (XAFS16).

Detalles Bibliográficos
Autores: Subías, Gloria, Cuartero, Vera, Blasco, Javier, García, Joaquín, Meneghini, C., Aquilanti, Giuliana
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::2a7a532333f1fc1789a9f3f59bb22184
Acceso en línea:http://hdl.handle.net/10261/366811
Access Level:acceso abierto
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spelling Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitutionSubías, GloriaCuartero, VeraBlasco, JavierGarcía, JoaquínMeneghini, C.Aquilanti, Giuliana16th International Conference on X-ray Absorption Fine Structure (XAFS16).We investigated the relative importance of removing the Mn3+ Jahn-Teller distortion in driving ferromagnetism in LaMn1-xScxO3 combining x-ray powder diffraction and x-ray absorption spectroscopy at the Mn and Sc K-edges. By increasing the Sc content, the orthorhombic distortion of the Pbnm cell in LaMnO3 decreases but the unit-cell remains slightly distorted in LaScO3. Besides, the nearly tetragonal-distorted MO6 in LaMnO3 continuously evolves into a nearly regular one in LaScO3. On the other hand, x-ray absorption spectra show that the MnO6 octahedron remains Jahn-Teller distorted and the ScO6 octahedron is nearly regular along the whole series. Moreover, the ordering of the Mn3+ Jahn-Teller distortion is not disrupted in the ab plane for any Sc concentration. This contrasts with the Ga- substituted compounds, where a regular MnO6 is found for x>0.5. However, both LaMn0.5Sc0.5O3 and LaMn0.5Ga0.5O3 show ferromagnetic behavior independently of the presence (or not) of Jahn-Teller distorted Mn3+. Thus, our results point to the Mn-sublattice dilution as the main effect in driving ferromagnetism in these manganites over local structure effects previously proposed by the spin flipping or the vibronic superexchange models.Authors acknowledge the financial support from Mineco/FEDER MAT2012-38213-C02-01 and DGA E69 projects.Peer reviewedIOP PublishingMinisterio de Economía y Competitividad (España)European CommissionDiputación General de AragónConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/366811reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//MAT2012-38213-C02-01https://doi.org/10.1088/1742-6596/712/1/012119Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::2a7a532333f1fc1789a9f3f59bb221842026-05-22T06:33:51Z
dc.title.none.fl_str_mv Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
title Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
spellingShingle Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
Subías, Gloria
title_short Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
title_full Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
title_fullStr Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
title_full_unstemmed Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
title_sort Dependence of the Jahn-Teller distortion in LaMn1-xScxO3 on the isovalent Mn-site substitution
dc.creator.none.fl_str_mv Subías, Gloria
Cuartero, Vera
Blasco, Javier
García, Joaquín
Meneghini, C.
Aquilanti, Giuliana
author Subías, Gloria
author_facet Subías, Gloria
Cuartero, Vera
Blasco, Javier
García, Joaquín
Meneghini, C.
Aquilanti, Giuliana
author_role author
author2 Cuartero, Vera
Blasco, Javier
García, Joaquín
Meneghini, C.
Aquilanti, Giuliana
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
Diputación General de Aragón
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description 16th International Conference on X-ray Absorption Fine Structure (XAFS16).
publishDate 2016
dc.date.none.fl_str_mv 2016
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/366811
url http://hdl.handle.net/10261/366811
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//MAT2012-38213-C02-01
https://doi.org/10.1088/1742-6596/712/1/012119
Sí
dc.rights.none.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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
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