Correlation between deformation and total entropy change at the first-order magnetic transition of Fe2P-based magnetocaloric materials - Archive ouverte HAL
Article Dans Une Revue Results in Physics Année : 2023

Correlation between deformation and total entropy change at the first-order magnetic transition of Fe2P-based magnetocaloric materials

Résumé

While there is a growing consensus that lattice is an important source of entropy change at structural or elastic first-order magnetic transitions (FOMT) with finite volume change, the case of volume preserving transitions (ΔV = 0) remains more controversial. Here, the evolution of the total transition entropy change within the Fe2P family is presented as a function of the discontinuity on the ratio of the cell parameters. A striking correlation between ΔStr and Δ(c/a) is observed. This relationship is a first step towards a systematization of the FOMT properties in the Fe2P materials system. It also demonstrates that deformation can play a leading role in volume preserving FOMT.
Fichier principal
Vignette du fichier
Correlation between deformation and total entropy change at.pdf (436.59 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Licence

Dates et versions

hal-04305446 , version 1 (21-12-2023)

Licence

Identifiants

Citer

F. Guillou, H. Yibole, B. Narsu, V. Hardy. Correlation between deformation and total entropy change at the first-order magnetic transition of Fe2P-based magnetocaloric materials. Results in Physics, 2023, 44, pp.106203. ⟨10.1016/j.rinp.2022.106203⟩. ⟨hal-04305446⟩
26 Consultations
38 Téléchargements

Altmetric

Partager

More