Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions

[EN]The usefulness of modeling magnetocaloric materials expands from the understanding of their behavior to the prediction of new materials, playing a fundamental role in the optimization of their performance. In contrast with other areas of magnetic materials research, micromagnetic simulations of...

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Autores: Moreno-Ramírez, Luis M., Sánchez-Tejerina, Luis, Alejos, Óscar, Franco, Victorino, Raposo Funcia, Víctor Javier
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Recursos:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/170810
Acesso em linha:http://hdl.handle.net/10366/170810
Access Level:acceso abierto
Palavra-chave:Micromagnetic simulations
Landau–Lifshitz–Bloch equation
Magnetocaloric effect and materials
Second-order magnetic transitions
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spelling Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitionsMoreno-Ramírez, Luis M.Sánchez-Tejerina, LuisAlejos, ÓscarFranco, VictorinoRaposo Funcia, Víctor JavierMicromagnetic simulationsLandau–Lifshitz–Bloch equationMagnetocaloric effect and materialsSecond-order magnetic transitions[EN]The usefulness of modeling magnetocaloric materials expands from the understanding of their behavior to the prediction of new materials, playing a fundamental role in the optimization of their performance. In contrast with other areas of magnetic materials research, micromagnetic simulations of magnetocaloric materials are scarce due to the difficulty of modeling the material in the vicinity of the transition. To solve this limitation, we propose to use the Landau–Lifshitz–Bloch micromagnetic simulations to study the magnetocaloric effect associated with a second-order ferromagnetic↔paramagnetic transition. Following our proposed methodology and considering material parameters in a mean-field framework, we obtain reliable isothermal entropy change curves for monocrystalline and polycrystalline configurations, where we consider different anisotropic contributions. The robustness of the method was evaluated, yielding results that agreed with previous experimental and theoretical observations. Our study shows that micromagnetic simulations are a powerful tool for analyzing second-order magnetocaloric materials with complex microstructures.Projects PID2023-150853NB-C31 and PID2023-146047OBI00 funded by MICIU/AEI/10.13039/501100011033 and FEDER, and project Magccine funded by the European Union and the European Innovation Council.Elsevier202620262026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/170810reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésPID2023-150853NB-C31PID2023-146047OBI00Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1708102026-06-07T06:28:51Z
dc.title.none.fl_str_mv Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
title Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
spellingShingle Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
Moreno-Ramírez, Luis M.
Micromagnetic simulations
Landau–Lifshitz–Bloch equation
Magnetocaloric effect and materials
Second-order magnetic transitions
title_short Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
title_full Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
title_fullStr Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
title_full_unstemmed Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
title_sort Landau–Lifshitz–Bloch simulations of the magnetocaloric effect in continuous ferromagnetic–paramagnetic transitions
dc.creator.none.fl_str_mv Moreno-Ramírez, Luis M.
Sánchez-Tejerina, Luis
Alejos, Óscar
Franco, Victorino
Raposo Funcia, Víctor Javier
author Moreno-Ramírez, Luis M.
author_facet Moreno-Ramírez, Luis M.
Sánchez-Tejerina, Luis
Alejos, Óscar
Franco, Victorino
Raposo Funcia, Víctor Javier
author_role author
author2 Sánchez-Tejerina, Luis
Alejos, Óscar
Franco, Victorino
Raposo Funcia, Víctor Javier
author2_role author
author
author
author
dc.subject.none.fl_str_mv Micromagnetic simulations
Landau–Lifshitz–Bloch equation
Magnetocaloric effect and materials
Second-order magnetic transitions
topic Micromagnetic simulations
Landau–Lifshitz–Bloch equation
Magnetocaloric effect and materials
Second-order magnetic transitions
description [EN]The usefulness of modeling magnetocaloric materials expands from the understanding of their behavior to the prediction of new materials, playing a fundamental role in the optimization of their performance. In contrast with other areas of magnetic materials research, micromagnetic simulations of magnetocaloric materials are scarce due to the difficulty of modeling the material in the vicinity of the transition. To solve this limitation, we propose to use the Landau–Lifshitz–Bloch micromagnetic simulations to study the magnetocaloric effect associated with a second-order ferromagnetic↔paramagnetic transition. Following our proposed methodology and considering material parameters in a mean-field framework, we obtain reliable isothermal entropy change curves for monocrystalline and polycrystalline configurations, where we consider different anisotropic contributions. The robustness of the method was evaluated, yielding results that agreed with previous experimental and theoretical observations. Our study shows that micromagnetic simulations are a powerful tool for analyzing second-order magnetocaloric materials with complex microstructures.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/170810
url http://hdl.handle.net/10366/170810
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PID2023-150853NB-C31
PID2023-146047OBI00
dc.rights.none.fl_str_mv 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 Elsevier
publisher.none.fl_str_mv Elsevier
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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score 15,812429

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