Role of heat transport in all-optical helicity-independent magnetization switching

[EN]Single-shot all-optical helicity independent switching processes are investigated using advanced micromagnetic modeling in a ferrimagnetic thin film embedded in a multilayer stack. Building on recent experimental findings, our multiscale simulations realistically account for heat transport in th...

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Autores: Raposo Funcia, Víctor Javier, Hohlfeld, Julius, Mangin, Stephane, Martínez Vecino, Eduardo
Tipo de recurso: artículo
Estado:Versión borrador
Fecha de publicación:2025
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/168112
Acceso en línea:http://hdl.handle.net/10366/168112
Access Level:acceso abierto
Palabra clave:Magnetization switching
Spin dynamics
Ultrafast magnetic effects
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spelling Role of heat transport in all-optical helicity-independent magnetization switchingRaposo Funcia, Víctor JavierHohlfeld, JuliusMangin, StephaneMartínez Vecino, EduardoMagnetization switchingSpin dynamicsUltrafast magnetic effects[EN]Single-shot all-optical helicity independent switching processes are investigated using advanced micromagnetic modeling in a ferrimagnetic thin film embedded in a multilayer stack. Building on recent experimental findings, our multiscale simulations realistically account for heat transport in the stack, focusing on the influence of a metallic copper underlayer with varying thickness. We analyze how this thermal transport affects the final magnetic state of the ferrimagnet as a function of both the laser pulse duration and fluence. Our results reproduce the experimentally observed switching behaviors and elucidate the physical mechanisms that govern the emergence of three distinct final magnetic states. In particular, we demonstrate how these states are critically influenced by the thickness of the underlying copper layer.The work by V.R. and E.M. was partially supported by project PID2023-150853NB-C31 funded by MICIU/AEI /10.13039/501100011033 and by FEDER, UE. Financial support of the Department of Education of the Junta de Castilla y León and FEDER Funds is gratefully acknowledged (Escalera de Excelencia CLU-2023-1-02). This work was supported by the ANR through the France 2030 government grants EMCOM (ANR-22-PEEL-0009), PEPR SPIN (ANR-22-EXSP 0002) and PEPR SPIN – SPINMAT ANR-22-EXSP-0007 and ANR-23-CE30-0047 SLAM, the Institute Carnot ICEEL, the Région Grand Est, the Metropole Grand Nancy for the project “OPTIMAG” and FASTNESS, the interdisciplinary project LUE “MAT-PULSE”, part of the French PIA project “Lorraine Université d’Excellence” reference ANR-15-IDEX-04-LUE. This article is based upon work from COST Action CA23136 CHIROMAG, supported by COST (European Cooperation in Science and Technology).APS Journals202520252025info:eu-repo/semantics/articleinfo:eu-repo/semantics/draftapplication/pdfhttp://hdl.handle.net/10366/168112reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésPID2023-150853NB-C31CLU-2023-1-02ANR-22-PEEL-0009ANR-22-EXSP 0002ANR-22-EXSP-0007ANR-23-CE30-0047ANR-15-IDEX-04-LUECA23136 CHIROMAGAttribution-NonCommercial-NoDerivatives 4.0 InternacionalAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1681122026-06-07T06:28:51Z
dc.title.none.fl_str_mv Role of heat transport in all-optical helicity-independent magnetization switching
title Role of heat transport in all-optical helicity-independent magnetization switching
spellingShingle Role of heat transport in all-optical helicity-independent magnetization switching
Raposo Funcia, Víctor Javier
Magnetization switching
Spin dynamics
Ultrafast magnetic effects
title_short Role of heat transport in all-optical helicity-independent magnetization switching
title_full Role of heat transport in all-optical helicity-independent magnetization switching
title_fullStr Role of heat transport in all-optical helicity-independent magnetization switching
title_full_unstemmed Role of heat transport in all-optical helicity-independent magnetization switching
title_sort Role of heat transport in all-optical helicity-independent magnetization switching
dc.creator.none.fl_str_mv Raposo Funcia, Víctor Javier
Hohlfeld, Julius
Mangin, Stephane
Martínez Vecino, Eduardo
author Raposo Funcia, Víctor Javier
author_facet Raposo Funcia, Víctor Javier
Hohlfeld, Julius
Mangin, Stephane
Martínez Vecino, Eduardo
author_role author
author2 Hohlfeld, Julius
Mangin, Stephane
Martínez Vecino, Eduardo
author2_role author
author
author
dc.subject.none.fl_str_mv Magnetization switching
Spin dynamics
Ultrafast magnetic effects
topic Magnetization switching
Spin dynamics
Ultrafast magnetic effects
description [EN]Single-shot all-optical helicity independent switching processes are investigated using advanced micromagnetic modeling in a ferrimagnetic thin film embedded in a multilayer stack. Building on recent experimental findings, our multiscale simulations realistically account for heat transport in the stack, focusing on the influence of a metallic copper underlayer with varying thickness. We analyze how this thermal transport affects the final magnetic state of the ferrimagnet as a function of both the laser pulse duration and fluence. Our results reproduce the experimentally observed switching behaviors and elucidate the physical mechanisms that govern the emergence of three distinct final magnetic states. In particular, we demonstrate how these states are critically influenced by the thickness of the underlying copper layer.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/draft
format article
status_str draft
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/168112
url http://hdl.handle.net/10366/168112
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PID2023-150853NB-C31
CLU-2023-1-02
ANR-22-PEEL-0009
ANR-22-EXSP 0002
ANR-22-EXSP-0007
ANR-23-CE30-0047
ANR-15-IDEX-04-LUE
CA23136 CHIROMAG
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv APS Journals
publisher.none.fl_str_mv APS Journals
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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