TENCÉ, Sophie; CHEVALIER, Bernard

doi:10.1016/j.jmmm.2015.09.058

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TENCÉ, Sophie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CHEVALIER, Bernard
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Article de revue

Ce document a été publié dans

Journal of Magnetism and Magnetic Materials. 2016, vol. 399, p. 46-50

Elsevier

Résumé en anglais

We show that it is possible to replace in Gd2In some amount of In by X=Al, Ga, Sn and Pb to obtain Gd2In1−xXx samples after melting. The magnetic and magnetocaloric properties of the Gd2In0.8X0.2 intermetallic compounds have been investigated through dc magnetization measurements. We evidence that the substitution of Al and Ga for In barely changes the Curie temperature TC but decreases the second magnetic transition temperature T′ which corresponds to the transition from a ferromagnetic to an antiferromagnetic state. On the other hand, the substitution of Sn and Pb for In strongly increases TC and changes the nature or even suppresses the transition at lower temperature. This magnetic behavior gives rise to an interesting way to tune the Curie temperature near room temperature without diluting the Gd network and thus to modify the magnetocaloric effect in Gd2In1−xXx compounds.< Réduire

Mots clés en anglais

Intermetallic synthesis

Metamagnetism

Ferromagnetism

Magnetocaloric properties

DOI

http://dx.doi.org/10.1016/j.jmmm.2015.09.058

Project ANR

Nouveaux matériaux à effet magnétocalorique géant autour de la température ambiante et applications à la réfrigération magnétique

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026