Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study

Lock-in infrared thermography (LIT) was used to obtain the reversible adiabatic temperature change (ΔTrev ad ) from an oscillating magnetic field up to a maximum of 1.5 T. Several paradigmatic magnetocaloric materials exhibiting diverse thermomagnetic phase transitions were studied: (1) Gd, undergoi...

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Autores: Revuelta Losada, Jorge, Nawaz Khan, Aun, Moreno Ramírez, Luis Miguel, Law, Jia Yan, Giri, Anit K., Franco García, Victorino
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2025
País:España
Recursos:Universidad de Sevilla (US)
Repositório:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/178868
Acesso em linha:https://hdl.handle.net/11441/178868
https://doi.org/10.1016/j.matdes.2025.114372
Access Level:Acceso aberto
Palavra-chave:Magnetocaloric effect
Direct characterization measurements
Lock-in thermography
Hysteresis
Reversibility
Dynamic conditions
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spelling Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography studyRevuelta Losada, JorgeNawaz Khan, AunMoreno Ramírez, Luis MiguelLaw, Jia YanGiri, Anit K.Franco García, VictorinoMagnetocaloric effectDirect characterization measurementsLock-in thermographyHysteresisReversibilityDynamic conditionsLock-in infrared thermography (LIT) was used to obtain the reversible adiabatic temperature change (ΔTrev ad ) from an oscillating magnetic field up to a maximum of 1.5 T. Several paradigmatic magnetocaloric materials exhibiting diverse thermomagnetic phase transitions were studied: (1) Gd, undergoing a second-order transition; (2) LaFe11.38Mn0.28Si1.34-H undergoing a magneto-elastic first-order transition; and (3) Ni48.6Mn35.9In15.5 and (4) Ni36Co14Mn35Ti15 Heusler alloys, both undergoing magneto-structural first-order transition with varying degrees of overlap with the second-order transition of austenite and associated hysteresis. LIT increases ΔTrev ad resolution by two orders of magnitude compared to traditional thermography. This advanced capability facilitates the detection of features in the responses that would otherwise be challenging to identify. Furthermore, the phase Φ with respect to the excitation serves as an indicator of the phase transition dynamics. Importantly, while the ΔTrev ad measurements remain reversible against field oscillations, first-order thermomagnetic phase transitions driven by non-saturating fields show different behaviors for heating and cooling curves, manifesting thermal hysteresis and the irreversibility of the transition under those conditions. This highlights the significance of direct characterization methods of the magnetocaloric response over indirect approaches and its usefulness for the design of materials for efficient refrigeration devices.Premio Anual Publicación Científica Destacada de la US. Facultad de FísicaElsevierFísica de la Materia CondensadaAgencia Estatal de Investigación. EspañaEuropean Commission (EC)Air Force Office of Scientific Research. United StatesArmy Research Laboratory. United StatesEuropean Union (UE)Junta de Andalucía2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/178868https://doi.org/10.1016/j.matdes.2025.114372reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMaterials & Design, 256, 114372.PID2019- 105720RB-I00PID2023-146047OB-I00101101461FA8655- 21-1-7044W911NF-19-2-0212101161135EMC21_00418https://doi.org/10.1016/j.matdes.2025.114372info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1788682026-06-17T12:51:07Z
dc.title.none.fl_str_mv Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
title Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
spellingShingle Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
Revuelta Losada, Jorge
Magnetocaloric effect
Direct characterization measurements
Lock-in thermography
Hysteresis
Reversibility
Dynamic conditions
title_short Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
title_full Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
title_fullStr Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
title_full_unstemmed Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
title_sort Magnetic reversibility accompanied by thermal hysteresis in magnetocaloric materials: A lock-in thermography study
dc.creator.none.fl_str_mv Revuelta Losada, Jorge
Nawaz Khan, Aun
Moreno Ramírez, Luis Miguel
Law, Jia Yan
Giri, Anit K.
Franco García, Victorino
author Revuelta Losada, Jorge
author_facet Revuelta Losada, Jorge
Nawaz Khan, Aun
Moreno Ramírez, Luis Miguel
Law, Jia Yan
Giri, Anit K.
Franco García, Victorino
author_role author
author2 Nawaz Khan, Aun
Moreno Ramírez, Luis Miguel
Law, Jia Yan
Giri, Anit K.
Franco García, Victorino
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Física de la Materia Condensada
Agencia Estatal de Investigación. España
European Commission (EC)
Air Force Office of Scientific Research. United States
Army Research Laboratory. United States
European Union (UE)
Junta de Andalucía
dc.subject.none.fl_str_mv Magnetocaloric effect
Direct characterization measurements
Lock-in thermography
Hysteresis
Reversibility
Dynamic conditions
topic Magnetocaloric effect
Direct characterization measurements
Lock-in thermography
Hysteresis
Reversibility
Dynamic conditions
description Lock-in infrared thermography (LIT) was used to obtain the reversible adiabatic temperature change (ΔTrev ad ) from an oscillating magnetic field up to a maximum of 1.5 T. Several paradigmatic magnetocaloric materials exhibiting diverse thermomagnetic phase transitions were studied: (1) Gd, undergoing a second-order transition; (2) LaFe11.38Mn0.28Si1.34-H undergoing a magneto-elastic first-order transition; and (3) Ni48.6Mn35.9In15.5 and (4) Ni36Co14Mn35Ti15 Heusler alloys, both undergoing magneto-structural first-order transition with varying degrees of overlap with the second-order transition of austenite and associated hysteresis. LIT increases ΔTrev ad resolution by two orders of magnitude compared to traditional thermography. This advanced capability facilitates the detection of features in the responses that would otherwise be challenging to identify. Furthermore, the phase Φ with respect to the excitation serves as an indicator of the phase transition dynamics. Importantly, while the ΔTrev ad measurements remain reversible against field oscillations, first-order thermomagnetic phase transitions driven by non-saturating fields show different behaviors for heating and cooling curves, manifesting thermal hysteresis and the irreversibility of the transition under those conditions. This highlights the significance of direct characterization methods of the magnetocaloric response over indirect approaches and its usefulness for the design of materials for efficient refrigeration devices.
publishDate 2025
dc.date.none.fl_str_mv 2025
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/11441/178868
https://doi.org/10.1016/j.matdes.2025.114372
url https://hdl.handle.net/11441/178868
https://doi.org/10.1016/j.matdes.2025.114372
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Materials & Design, 256, 114372.
PID2019- 105720RB-I00
PID2023-146047OB-I00
101101461
FA8655- 21-1-7044
W911NF-19-2-0212
101161135
EMC21_00418
https://doi.org/10.1016/j.matdes.2025.114372
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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score 15.812429

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