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Title: Scaling of the entropy change at the magnetoelastic transition in Gd5(SixGe1-x)4
Author: Casanova i Fernàndez, Fèlix
Batlle Gelabert, Xavier
Labarta, Amílcar
Marcos, Jordi
Mañosa, Lluís
Planes Vila, Antoni
Keywords: Entropia
Materials ferromagnètics
Ferromagnetic materials
Issue Date: 2002
Publisher: The American Physical Society
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
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2002, vol. 66, núm. 21, p. 212402(1)-212402(4)
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Física de la Matèria Condensada)

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