Tunable magnetocaloric effect in Gd-based glassy ribbons
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MAYER, Charlotte | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GORSSE, Stéphane | |
| hal.structure.identifier | Laboratoire national des champs magnétiques intenses - Grenoble [LNCMI-G] | |
| dc.contributor.author | BALLON, Géraldine | |
| hal.structure.identifier | Instituto de Ciencia de Materiales de Sevilla [ICMSE] | |
| dc.contributor.author | CABALLERO-FLORES, Rafael | |
| hal.structure.identifier | Instituto de Ciencia de Materiales de Sevilla [ICMSE] | |
| dc.contributor.author | FRANCO, Victor | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHEVALIER, Bernard | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 0021-8979 | |
| dc.description.abstractEn | The series of glassy ribbons Gd60M30In10 (M = Mn, Co, Ni, Cu) was synthesized by melt-spinning. The change of transition element M in these Gd-based metallic glasses was proven to induce huge variations of the Curie temperature TC, magnetic entropy change peak values ΔSm<sup>peak</sup>, and widths at half maximum values of the magnetic entropy change δT. When M is non magnetic (M = Co, Ni, Cu), the samples behave similarly: they display high values of ΔSm<sup>peak</sup> (between -6.6 and -8.2 J/kg K in a magnetic field variation of 4.6 T), average δT values (between 77 and 120 K) and no magnetic hysteresis. On the contrary, when M carries a magnetic moment (M = Mn), some irreversibility appears at low temperature, ΔSm<sup>peak</sup> is lower (only 3.1 J/kg K for μ0H = 4.6 T) and the magnetic transition is very large (δT = 199 K for μ0H = 4.6 T). These features are explained by some antiparallel coupling between Mn atoms randomly located in the metallic glass. This leads to the occurrence of a cluster-glass behavior at low temperature (35 K), following the ferromagnetic transition observed at 180 K when the temperature is decreased. Also, power law fittings of ΔSm<sup>peak</sup> and δT versus μ0H were performed and show that δT is less field dependent than ΔSm<sup>peak</sup>. We could then identify an interesting way of improving the refrigeration capacity of the material at low magnetic field. | |
| dc.language.iso | en | |
| dc.publisher | American Institute of Physics | |
| dc.subject.en | Nickel alloys | |
| dc.subject.en | Curie temperature | |
| dc.subject.en | Cobalt alloys | |
| dc.subject.en | Copper alloys | |
| dc.subject.en | Entropy | |
| dc.subject.en | Gadolinium alloys | |
| dc.subject.en | Indium alloys | |
| dc.subject.en | Magnetic transitions | |
| dc.subject.en | Magnetocaloric effects | |
| dc.subject.en | Manganese alloys | |
| dc.subject.en | Melt spinning | |
| dc.title.en | Tunable magnetocaloric effect in Gd-based glassy ribbons | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1063/1.3632983 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Applied Physics | |
| bordeaux.page | 053920 (7 p.) | |
| bordeaux.volume | 110 | |
| bordeaux.issue | 5 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00626201 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00626201v1 | |
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