Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

504143.pdf (124.61 KB)

Document type

Article

Version

Published version

Publication date

2002

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10524

Scaling of the entropy change at the magnetoelastic transition in Gd5(SixGe1-x)4

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

http://dx.doi.org/10.1103/PhysRevB.66.212402

Abstract

Differential scanning calorimetry under a magnetic field H has been used to measure the entropy change DS at the magnetoelastic transition in Gd5(SixGe12x)4 alloys, for x<0.5. We show that DS scales with the transition temperature, Tt , which is tuned by x and H, from 70 to 310 K. Such a scaling demonstrates that Tt is the relevant parameter in determining the giant magnetocaloric effect in these alloys, and proves that the magnetovolume effects due to H are of the same nature as the volume effects caused by substitution

Subject

Entropia, Magnetostricció, Materials ferromagnètics, Aliatges

Subject (English)

Entropy, Magnetostriction, Ferromagnetic materials, Alloys

Citation

Collections

Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Física de la Matèria Condensada)

Citation

CASANOVA I FERNÀNDEZ, Fèlix, et al. Scaling of the entropy change at the magnetoelastic transition in Gd5(SixGe1-x)4. Physical Review B. 2002. Vol. 66, num. 21, pags. 212402(1)-212402(4). ISSN 0163-1829. [consulted: 20 of August of 2026]. Available at: https://hdl.handle.net/2445/10524

Export metadata

JSON - METS

Share record