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

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 magn...

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Autores: Moreno Ramírez, Luis Miguel, Sánchez Tejerina, Luis, Alejos, Óscar, Franco García, Victorino, Raposo, Víctor
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:dnet:idus________::77f0d79221f580a62da6404aba2f852f
Acceso en línea:https://hdl.handle.net/11441/186876
https://doi.org/10.1016/j.scriptamat.2026.117284
Access Level:acceso abierto
Palabra clave: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 MiguelSánchez Tejerina, LuisAlejos, ÓscarFranco García, VictorinoRaposo, VíctorMicromagnetic simulationsLandau–Lifshitz–Bloch equationMagnetocaloric effect and materialsSecond-order magnetic transitionsThe 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.ElsevierFísica de la Materia CondensadaMinisterio de Ciencia, Innovación y Universidades (MICIU). EspañaAgencia Estatal de Investigación. EspañaEuropean Union (UE)2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/186876https://doi.org/10.1016/j.scriptamat.2026.117284reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésScripta Materialia, 278, 117284. PID2023-150853NBC31PID2023-146047OBI00info:eu-repo/semantics/openAccessoai:dnet:idus________::77f0d79221f580a62da6404aba2f852f2026-06-17T12:51:07Z
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 Miguel
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 Miguel
Sánchez Tejerina, Luis
Alejos, Óscar
Franco García, Victorino
Raposo, Víctor
author Moreno Ramírez, Luis Miguel
author_facet Moreno Ramírez, Luis Miguel
Sánchez Tejerina, Luis
Alejos, Óscar
Franco García, Victorino
Raposo, Víctor
author_role author
author2 Sánchez Tejerina, Luis
Alejos, Óscar
Franco García, Victorino
Raposo, Víctor
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Física de la Materia Condensada
Ministerio de Ciencia, Innovación y Universidades (MICIU). España
Agencia Estatal de Investigación. España
European Union (UE)
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 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
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 https://hdl.handle.net/11441/186876
https://doi.org/10.1016/j.scriptamat.2026.117284
url https://hdl.handle.net/11441/186876
https://doi.org/10.1016/j.scriptamat.2026.117284
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Scripta Materialia, 278, 117284.
PID2023-150853NBC31
PID2023-146047OBI00
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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