Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks

The magnetic domain structure of patterned antiferromagnetic/ferromagnetic Ir20Mn80/Ni80Fe20 bilayer microdisk arrays has been investigated using layer-specific polarized x-ray photoemission electron microscopy and magnetic circular dichroism. Magnetic imaging at the Fe and Mn L-edge resonances prov...

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Autores: Salazar Álvarez, Germán|||0000-0002-0671-435X, Kavich, J. J., Sort, Jordi|||0000-0003-1213-3639, Mugarza, Aitor|||0000-0002-2698-885X, Stepanow, S., Potenza, A., Marchetto, H., Dhesi, S. S., Baltz, Vincent, Dieny, Bernard, Weber, A., Heyderman, L. J., Nogués, Josep|||0000-0003-4616-1371, Gambardella, Pietro|||0000-0003-0031-9217
Formato: artículo
Fecha de publicación:2009
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:116004
Acesso em linha:https://ddd.uab.cat/record/116004
https://dx.doi.org/urn:doi:10.1063/1.3168515
Access Level:acceso abierto
Palavra-chave:Antiferromagnetism
Atomic force microscopy
Ferromagnetism
Nickel
Rotating flows
X-ray absorption spectroscopy
Electrons
Interface structure
Chiral symmetries
Monolayers
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spelling Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisksSalazar Álvarez, Germán|||0000-0002-0671-435XKavich, J. J.Sort, Jordi|||0000-0003-1213-3639Mugarza, Aitor|||0000-0002-2698-885XStepanow, S.Potenza, A.Marchetto, H.Dhesi, S. S.Baltz, VincentDieny, BernardWeber, A.Heyderman, L. J.Nogués, Josep|||0000-0003-4616-1371Gambardella, Pietro|||0000-0003-0031-9217AntiferromagnetismAtomic force microscopyFerromagnetismNickelRotating flowsX-ray absorption spectroscopyElectronsInterface structureChiral symmetriesMonolayersThe magnetic domain structure of patterned antiferromagnetic/ferromagnetic Ir20Mn80/Ni80Fe20 bilayer microdisk arrays has been investigated using layer-specific polarized x-ray photoemission electron microscopy and magnetic circular dichroism. Magnetic imaging at the Fe and Mn L-edge resonances provided direct evidence of a vortex state imprinted into the antiferromagnet at the interface. The opposite magnetic contrast between the layers indicated a reversed chirality of the imprinted vortex state, and a quantitative analysis of the magnetic moment from the dichroism spectra showed that uncompensated Mn spins equivalent to about 60% of a monolayer of bulk Ir20Mn80 contributed to the imprinted information at the interface.American Physical Society 22009-01-0120092009-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/116004https://dx.doi.org/urn:doi:10.1063/1.3168515reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:1160042026-06-06T12:50:31Z
dc.title.none.fl_str_mv Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
title Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
spellingShingle Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
Salazar Álvarez, Germán|||0000-0002-0671-435X
Antiferromagnetism
Atomic force microscopy
Ferromagnetism
Nickel
Rotating flows
X-ray absorption spectroscopy
Electrons
Interface structure
Chiral symmetries
Monolayers
title_short Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
title_full Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
title_fullStr Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
title_full_unstemmed Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
title_sort Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks
dc.creator.none.fl_str_mv Salazar Álvarez, Germán|||0000-0002-0671-435X
Kavich, J. J.
Sort, Jordi|||0000-0003-1213-3639
Mugarza, Aitor|||0000-0002-2698-885X
Stepanow, S.
Potenza, A.
Marchetto, H.
Dhesi, S. S.
Baltz, Vincent
Dieny, Bernard
Weber, A.
Heyderman, L. J.
Nogués, Josep|||0000-0003-4616-1371
Gambardella, Pietro|||0000-0003-0031-9217
author Salazar Álvarez, Germán|||0000-0002-0671-435X
author_facet Salazar Álvarez, Germán|||0000-0002-0671-435X
Kavich, J. J.
Sort, Jordi|||0000-0003-1213-3639
Mugarza, Aitor|||0000-0002-2698-885X
Stepanow, S.
Potenza, A.
Marchetto, H.
Dhesi, S. S.
Baltz, Vincent
Dieny, Bernard
Weber, A.
Heyderman, L. J.
Nogués, Josep|||0000-0003-4616-1371
Gambardella, Pietro|||0000-0003-0031-9217
author_role author
author2 Kavich, J. J.
Sort, Jordi|||0000-0003-1213-3639
Mugarza, Aitor|||0000-0002-2698-885X
Stepanow, S.
Potenza, A.
Marchetto, H.
Dhesi, S. S.
Baltz, Vincent
Dieny, Bernard
Weber, A.
Heyderman, L. J.
Nogués, Josep|||0000-0003-4616-1371
Gambardella, Pietro|||0000-0003-0031-9217
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv American Physical Society
dc.subject.none.fl_str_mv Antiferromagnetism
Atomic force microscopy
Ferromagnetism
Nickel
Rotating flows
X-ray absorption spectroscopy
Electrons
Interface structure
Chiral symmetries
Monolayers
topic Antiferromagnetism
Atomic force microscopy
Ferromagnetism
Nickel
Rotating flows
X-ray absorption spectroscopy
Electrons
Interface structure
Chiral symmetries
Monolayers
description The magnetic domain structure of patterned antiferromagnetic/ferromagnetic Ir20Mn80/Ni80Fe20 bilayer microdisk arrays has been investigated using layer-specific polarized x-ray photoemission electron microscopy and magnetic circular dichroism. Magnetic imaging at the Fe and Mn L-edge resonances provided direct evidence of a vortex state imprinted into the antiferromagnet at the interface. The opposite magnetic contrast between the layers indicated a reversed chirality of the imprinted vortex state, and a quantitative analysis of the magnetic moment from the dichroism spectra showed that uncompensated Mn spins equivalent to about 60% of a monolayer of bulk Ir20Mn80 contributed to the imprinted information at the interface.
publishDate 2009
dc.date.none.fl_str_mv 2
2009-01-01
2009
2009-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/116004
https://dx.doi.org/urn:doi:10.1063/1.3168515
url https://ddd.uab.cat/record/116004
https://dx.doi.org/urn:doi:10.1063/1.3168515
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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