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http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1960| Optimizing the curie temperature of pseudo-binary RxR'2-xFe17 (R,R' = rare earth) for magnetic refrigeration | |
| Pablo Álvarez Alonso Pedro Gorria Gabriel Cuello Inés Puente Orench JOSE LUIS SANCHEZ LLAMAZARES Victorino Franco Reiffers Marian Jesús Angel Blanco Rodríguez | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| https://doi.org/10.1088/1742-6596/549/1/012019 | |
| "Several pseudo-binary RxR2-x'Fe-17 alloys (with R = Y, Ce, Pr, Gd and Dy) were synthesized with rhombohedral Th2Zn17-type crystal structure determined from x-ray and neutron powder diffraction. The choice of compositions was done with the aim of tuning the Curie temperature (T-C) in the 270 +/- 20 K temperature range, in order to obtain the maximum magneto-caloric effect around room temperature. The investigated compounds exhibit broad isothermal magnetic entropy changes, Delta S-M(T), with moderate values of the refrigerant capacity, even though the values of Delta S-M(Peak) are relatively low compared with those of the R2Fe17 compounds with R = Pr or Nd. The reduction on the Delta S-M(Peak) is explained in terms of the diminution in the saturation magnetization value. Furthermore, the Delta S-M(T) curves exhibit a similar caret-like behavior, suggesting that the magneto-caloric effect is mainly governed by the Fe-sublattice. A single master curve for Delta S-M/Delta S-M(Peak)(T) under different values of the magnetic field change are obtained for each compound by rescaling of the temperature axis." | |
| IOP Publishing | |
| 2014 | |
| Artículo | |
| Pablo Álvarez-Alonso et al 2014 J. Phys.: Conf. Ser. 549 012019 | |
| FÍSICA | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Publicaciones Científicas Nanociencias y Materiales |
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|---|---|---|---|
| JPhysConfSer549(2014)012019.pdf | 1.68 MB | Adobe PDF | Visualizar/Abrir |