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Synthesis and magnetocaloric characterization of rapidly solidified ErMn2 melt-spun ribbons

dc.contributor.authorSánchez Llamazares, José Luis
dc.contributor.authorIbarra Gaytán, Pablo Jesús
dc.contributor.authorSánchez Valdés, Cesar Fidel
dc.contributor.authorÁlvarez Alonso, Pablo
dc.contributor.authorMartínez Iniesta, Armando David
dc.date.accessioned2019-08-30T16:21:23Z
dc.date.available2019-08-30T16:21:23Z
dc.date.issued2017
dc.identifier.citationJ.L. Sánchez Llamazares, P. Ibarra-Gaytán, C.F. Sánchez-Valdés, P. Álvarez-Alonso, A.D. Martínez-Iniesta, Synthesis and magnetocaloric characterization of rapidly solidified ErMn2 melt-spun ribbons, Intermetallics, Volume 88, 2017, Pages 41-45.
dc.identifier.urihttp://hdl.handle.net/11627/5156
dc.description.abstract"We have fabricated melt-spun ribbons of nominal composition ErMn2 and studied their phase constitution and magnetocaloric (MC) properties by X-ray diffraction, scanning electron microscopy (SEM), magnetization and heat capacity measurements. The major phase formed shows the MgZn2-type hexagonal structure (C14-type); however, both XRD and SEM analyses revealed the formation of impurity phases (i.e., Er6Mn23 and ErMn12). Ribbons exhibit a saturation magnetization of 149 Am2kg?1 at 2 K and a Curie temperature of TC = 15 K. A field-induced metamagnetic transition at very low critical magnetic fields was observed below 8 K that leads to a change of sign in the magnetic entropy change ?SM below this temperature (?SMpeak = 2.5 Jkg?1K?1 at 2 K and 5 T). For a magnetic field change of 5 T (2 T) applied along the ribbon length, the samples show a large peak value of the magnetic entropy change ?SMpeak of ?20.5 (?10.8) Jkg?1K?1, a full-width at half-maximum ?TFWHM for the ?SM(T) curve of 20 (12) K, and a maximum adiabatic temperature change ?Tadmax of 7.4 (3.6) K. The obtained results are compared with the reported in literature by other authors for bulk alloys."
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectErMn2 Laves phase
dc.subjectMelt spun ribbons
dc.subjectMagnetocaloric effect
dc.subjectMagnetic entropy change
dc.subjectAdiabatic temperature change
dc.subject.classificationQUÍMICA
dc.titleSynthesis and magnetocaloric characterization of rapidly solidified ErMn2 melt-spun ribbons
dc.typearticle
dc.identifier.doihttps://doi.org/10.1016/j.intermet.2017.05.001
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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