X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films

The element-selective technique of X-ray magnetic circular dichroism (XMCD) has been used to study the magnetic properties of La2/3Ca1/3Mn0.97Fe0.03O3 (LCMFO) thin films. XMCD measurements below the ferromagnetic ordering temperature at the Mn and Fe absorption edges allow the determination of the c...

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Fecha de publicación:
2015
Institución:
Universidad de Medellín
Repositorio:
Repositorio UDEM
Idioma:
eng
OAI Identifier:
oai:repository.udem.edu.co:11407/1551
Acceso en línea:
http://hdl.handle.net/11407/1551
Palabra clave:
Complex oxides
Magnetic interactions
Magnetic thin films
X-ray magnetic circular dichroism
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http://purl.org/coar/access_right/c_16ec
id REPOUDEM2_48eedfd54e2e11d88ab603b690df0b92
oai_identifier_str oai:repository.udem.edu.co:11407/1551
network_acronym_str REPOUDEM2
network_name_str Repositorio UDEM
repository_id_str
spelling 2015-12-17T19:27:46Z2015-12-17T19:27:46Z20157496036http://hdl.handle.net/11407/155110.1016/j.spmi.2015.07.009The element-selective technique of X-ray magnetic circular dichroism (XMCD) has been used to study the magnetic properties of La2/3Ca1/3Mn0.97Fe0.03O3 (LCMFO) thin films. XMCD measurements below the ferromagnetic ordering temperature at the Mn and Fe absorption edges allow the determination of the contributions and relative orientations of the Mn and Fe magnetic moments. A reduction in the Mn XMCD signal of the LCMFO sample compared to that for the parent La2/3Ca1/3MnO3 (LCMO) system reveals important modifications in the electronic and magnetic properties with the presence of Fe. The Fe X-ray absorption (XAS) for the LCMFO film is characteristic of Fe3+, and the comparison with multiplet calculations shows that the Fe dopants occupy octahedral sites in the crystal, which is consistent with Fe3+ substituting Mn3+ in LCMO. The magnetic moments of Mn and Fe are found to align antiparallel, which suggests the presence of Mn–O–Fe superexchange coupling. This result is consistent with macroscopic magnetometry measurements on the LCMFO system, which show a decrease in saturation magnetization of LCMO with Fe doping.engAcademic Presshttp://www.sciencedirect.com/science/article/pii/S0749603615300823Superlattices and MicrostructuresScopusX-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin filmsArticleinfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/restrictedAccesshttp://purl.org/coar/access_right/c_16ecMagnetic Spectroscopy Group, Diamond Light Source, Didcot, UKGrupo de Materiales Nanoestructurados y Biomodelación, Departamento de Ciencias Básicas, Universidad de Medellín, Medellín, ColombiaDepartment of Physics, Clarendon Laboratory, University of Oxford, Oxford, UKGrupo de Estado Sólido, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín, ColombiaFigueroa A.I.Campillo G.E.Baker A.A.Osorio J.A.Arnache O.L.van der Laan G.Complex oxidesMagnetic interactionsMagnetic thin filmsX-ray magnetic circular dichroism11407/1551oai:repository.udem.edu.co:11407/15512020-05-27 19:13:24.697Repositorio Institucional Universidad de Medellinrepositorio@udem.edu.co
dc.title.eng.fl_str_mv X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
title X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
spellingShingle X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
Complex oxides
Magnetic interactions
Magnetic thin films
X-ray magnetic circular dichroism
title_short X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
title_full X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
title_fullStr X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
title_full_unstemmed X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
title_sort X-ray magnetic circular dichroism on La2/3Ca1/3Mn0.97Fe0.03O3 thin films
dc.contributor.affiliation.spa.fl_str_mv Magnetic Spectroscopy Group, Diamond Light Source, Didcot, UK
Grupo de Materiales Nanoestructurados y Biomodelación, Departamento de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia
Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, UK
Grupo de Estado Sólido, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín, Colombia
dc.subject.keyword.eng.fl_str_mv Complex oxides
Magnetic interactions
Magnetic thin films
X-ray magnetic circular dichroism
topic Complex oxides
Magnetic interactions
Magnetic thin films
X-ray magnetic circular dichroism
description The element-selective technique of X-ray magnetic circular dichroism (XMCD) has been used to study the magnetic properties of La2/3Ca1/3Mn0.97Fe0.03O3 (LCMFO) thin films. XMCD measurements below the ferromagnetic ordering temperature at the Mn and Fe absorption edges allow the determination of the contributions and relative orientations of the Mn and Fe magnetic moments. A reduction in the Mn XMCD signal of the LCMFO sample compared to that for the parent La2/3Ca1/3MnO3 (LCMO) system reveals important modifications in the electronic and magnetic properties with the presence of Fe. The Fe X-ray absorption (XAS) for the LCMFO film is characteristic of Fe3+, and the comparison with multiplet calculations shows that the Fe dopants occupy octahedral sites in the crystal, which is consistent with Fe3+ substituting Mn3+ in LCMO. The magnetic moments of Mn and Fe are found to align antiparallel, which suggests the presence of Mn–O–Fe superexchange coupling. This result is consistent with macroscopic magnetometry measurements on the LCMFO system, which show a decrease in saturation magnetization of LCMO with Fe doping.
publishDate 2015
dc.date.accessioned.none.fl_str_mv 2015-12-17T19:27:46Z
dc.date.available.none.fl_str_mv 2015-12-17T19:27:46Z
dc.date.created.none.fl_str_mv 2015
dc.type.eng.fl_str_mv Article
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.identifier.issn.none.fl_str_mv 7496036
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/11407/1551
dc.identifier.doi.none.fl_str_mv 10.1016/j.spmi.2015.07.009
identifier_str_mv 7496036
10.1016/j.spmi.2015.07.009
url http://hdl.handle.net/11407/1551
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.isversionof.spa.fl_str_mv http://www.sciencedirect.com/science/article/pii/S0749603615300823
dc.relation.ispartofen.eng.fl_str_mv Superlattices and Microstructures
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.rights.accessrights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://purl.org/coar/access_right/c_16ec
dc.publisher.spa.fl_str_mv Academic Press
dc.source.spa.fl_str_mv Scopus
institution Universidad de Medellín
repository.name.fl_str_mv Repositorio Institucional Universidad de Medellin
repository.mail.fl_str_mv repositorio@udem.edu.co
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