Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites

The crystal and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) double perovskites have been investigated. All compounds crystallize with an orthorhombic Pbnm structure at room temperature. These materials show complete chemical disorder of Fe and Ru cations for all compounds. The distortion of...

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Autores: Iturbe-Zabalo, E., Fabelo, Oscar, Gateshki, M., Igartua, J. M.
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/73854
Acceso en línea:http://hdl.handle.net/10261/73854
Access Level:acceso abierto
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spelling Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskitesIturbe-Zabalo, E.Fabelo, OscarGateshki, M.Igartua, J. M.The crystal and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) double perovskites have been investigated. All compounds crystallize with an orthorhombic Pbnm structure at room temperature. These materials show complete chemical disorder of Fe and Ru cations for all compounds. The distortion of the structure, relative to the ideal cubic perovskite, has been decomposed into distortion modes. It has been found that the primary modes of the distortion are octahedral tilting modes: R + 4 and M + 3. The crystal structure of SrPrFeRuO6 has been studied from room temperature up to 1200 K by neutron powder diffraction. There is a structural phase transition from orthorhombic (space group Pbnm) to trigonal (space group ) at T = 1075 K. According to group theory no second-order transition is possible between these symmetries. Magnetic ordering for all the compounds is described by the magnetic propagation vector (0,0,0). SrPrFeRuO6 shows ferrimagnetic order below ca 475 K, while SrLaFeRuO6 (below ca 450 K) and SrNdFeRuO6 (below ca 430 K) exhibit canted-antiferromagnetic order. The magnetic moments at low temperatures are m(Fe/Ru) = 1.88 (3)B for SrLaFeRuO6 (2 K), m(Pr) = 0.46 (4)B and m(Fe/Ru) = 2.24B for SrPrFeRuO6 (2 K), and m(Fe/Ru) = 1.92B for SrNdFeRuO6 (10 K). © 2012 International Union of Crystallography.This work has been supported by ILL (grant MBR-GL/09-056 and MBR-GL/11-050), the Spanish Ministry of Science and Innovation (project MAT2008-05839) and the European Commission under the 7th Framework Program through the ‘Research Infrastructures’ action of the ‘Capacities’ Program, Contract No: CP-CSA_INFRA-2008-1.1.1 Number 226507- NMI3. The authors are grateful to FRMII (exp. 4456), ILL (exp. 5-24-458) and PSI (exp. 20101302) for the beamtime allocation and the instrument local contacts Dr Markus Hoelzel (SPODI, FRMII), Dr Gabriel Cuello (D2B, ILL) and Dr Vladimir Pumjakushin (HRPT, SINQ, PSI) for their kind help and technical assistance.Peer ReviewedInternational Union of Crystallography2013201320122013info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/73854reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/226507http://dx.doi.org/10.1107/S0108768112044217info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/738542026-05-22T06:33:51Z
dc.title.none.fl_str_mv Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
title Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
spellingShingle Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
Iturbe-Zabalo, E.
title_short Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
title_full Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
title_fullStr Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
title_full_unstemmed Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
title_sort Mode-crystallography analysis and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) disordered perovskites
dc.creator.none.fl_str_mv Iturbe-Zabalo, E.
Fabelo, Oscar
Gateshki, M.
Igartua, J. M.
author Iturbe-Zabalo, E.
author_facet Iturbe-Zabalo, E.
Fabelo, Oscar
Gateshki, M.
Igartua, J. M.
author_role author
author2 Fabelo, Oscar
Gateshki, M.
Igartua, J. M.
author2_role author
author
author
description The crystal and magnetic structures of SrLnFeRuO6 (Ln = La, Pr, Nd) double perovskites have been investigated. All compounds crystallize with an orthorhombic Pbnm structure at room temperature. These materials show complete chemical disorder of Fe and Ru cations for all compounds. The distortion of the structure, relative to the ideal cubic perovskite, has been decomposed into distortion modes. It has been found that the primary modes of the distortion are octahedral tilting modes: R + 4 and M + 3. The crystal structure of SrPrFeRuO6 has been studied from room temperature up to 1200 K by neutron powder diffraction. There is a structural phase transition from orthorhombic (space group Pbnm) to trigonal (space group ) at T = 1075 K. According to group theory no second-order transition is possible between these symmetries. Magnetic ordering for all the compounds is described by the magnetic propagation vector (0,0,0). SrPrFeRuO6 shows ferrimagnetic order below ca 475 K, while SrLaFeRuO6 (below ca 450 K) and SrNdFeRuO6 (below ca 430 K) exhibit canted-antiferromagnetic order. The magnetic moments at low temperatures are m(Fe/Ru) = 1.88 (3)B for SrLaFeRuO6 (2 K), m(Pr) = 0.46 (4)B and m(Fe/Ru) = 2.24B for SrPrFeRuO6 (2 K), and m(Fe/Ru) = 1.92B for SrNdFeRuO6 (10 K). © 2012 International Union of Crystallography.
publishDate 2012
dc.date.none.fl_str_mv 2012
2013
2013
2013
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http://purl.org/coar/resource_type/c_6501
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/73854
url http://hdl.handle.net/10261/73854
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/EC/FP7/226507
http://dx.doi.org/10.1107/S0108768112044217
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv International Union of Crystallography
publisher.none.fl_str_mv International Union of Crystallography
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)
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collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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