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http://hdl.handle.net/2445/10524| 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 Magnetostricció Materials ferromagnètics Aliatges Entropy Magnetostriction Ferromagnetic materials Alloys |
| 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 http://dx.doi.org/10.1103/PhysRevB.66.212402 |
| It is part of: | Physical Review B, 2002, vol. 66, núm. 21, p. 212402(1)-212402(4) |
| URI: | http://hdl.handle.net/2445/10524 |
| Related resource: | http://dx.doi.org/10.1103/PhysRevB.66.212402 |
| 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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| 504143.pdf | 124.61 kB | Adobe PDF | View/Open |
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