| Issue |
EPL
Volume 79, Number 4, August 2007
|
|
|---|---|---|
| Article Number | 47009 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/79/47009 | |
| Published online | 25 July 2007 | |
Field dependence of the magnetocaloric effect in Gd and (Er
Dyx)Al2: Does a universal curve exist?
1
Departamento de Física de la Materia Condensada, ICMSE-CSIC, Universidad de Sevilla P.O. Box 1065, 41080 Sevilla, Spain
2
Ames Laboratory and Department of Materials Science and Engineering, Iowa State University Ames, IA 50011-3020, USA
Received:
26
April
2007
Accepted:
29
June
2007
The field dependence of the magnetic entropy change of ferromagnetic lanthanide-based materials has been studied. The recently proposed master curve for the field dependence of the magnetocaloric effect of Fe-based amorphous alloys can also be constructed for these lanthanide-based crystalline materials, suggesting a universal behavior. The exponent n controlling the field dependence of the magnetic entropy change can be used for the interpretation of results in the case of multiple magnetic ordering phenomena.
PACS: 75.30.Sg – Magnetocaloric effect, magnetic cooling
© Europhysics Letters Association, 2007
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