Martensitic transformation, magnetic and magnetocaloric properties of Ni–Mn–Fe–Sn Heusler ribbons
dc.contributor.author
dc.date.accessioned
2021-05-17T11:58:12Z
dc.date.available
2021-05-17T11:58:12Z
dc.date.issued
2021-05
dc.identifier.issn
2238-7854
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dc.description.abstract
Melt-spun ribbons of nominal composition Ni50Mn36-xFexSn14 (x = 0, 2, and 3) were prepared by melt-spinning. The alloys undergo a martensitic transformation from L21 austenite to an orthorhombic 4O martensite on cooling, as determined by X-ray powder diffraction analysis. Replacement of Mn by Fe linearly reduces the characteristic temperatures of the martensitic transformation (the equilibrium temperature decreases from 328 to 285 K) and reduces the Curie temperature of the austenite phase (from 336 to 300 K), whereas the effect of the applied magnetic field on the martensite transition temperatures is negligible. Magnetic measurements (zero-field cooled, ZFC, and field cooled, FC, curves, AC susceptibility measurements) hint the coexistence of two different ferromagnetic martensitic magnetic phases. Moreover, the AC susceptibility measurements and the irreversibility of the ZFC and FC curves point towards the presence of antiferromagnetic and ferromagnetic interactions in the martensitic phase. All samples exhibit spontaneous exchange bias at 2 K, with double-shifted loops, whereas the evolution of the conventional exchange bias with the temperature agrees quite well with the behavior of ferromagnetic regions surrounded by spin-glass regions or with the coexistence of ferromagnetic–antiferromagnetic interactions. Ni50Mn36-xFexSn14 ribbons present a moderate inverse magnetocaloric effect (with a maximum of the magnetic entropy change of 5.7 Jkg−1K−1 for μ0H = 3 T for x = 3). It is worth to note that these materials feature a significant reservoir (up to 44 Jkg−1K−1 for x = 2) of magnetic entropy change, linked to the proximity of the austenitic ferromagnetic transition to the martensitic transformation
dc.description.sponsorship
The support received from the following organizations is
gratefully acknowledged: Spanish MINECO, project numbers:
MAT2016-75967-P, MCIU-19-RTI2018-094683-B-C52, and
PGC2018-099530-B-C31 (MCIU/AEI/FEDER, UE), Principality of
Asturias, project number: IDI/2018/000185, and the Universidad de Castilla-La Mancha (Plan Propio de la Universidad
de Castilla-La Mancha (FEDER, EU) for the “Grupo de Materiales Magneticos (GMM) ”. We also thank the enlightening discussions with Prof. B. Hernando
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/MAT2016-75967-P/ES/ALEACIONES CON MEMORIA DE FORMA ACTIVADA POR CAMPO MAGNÉTICO EN MICROESCALA/
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1016/j.jmrt.2021.03.049
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Journal of Materials Research and Technology, 2021, vol. 12, p.1091-1103
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Articles publicats (D-F)
dc.rights
Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.uri
dc.subject
dc.title
Martensitic transformation, magnetic and magnetocaloric properties of Ni–Mn–Fe–Sn Heusler ribbons
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
033252
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym