Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound

Details Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound

2012-01-21

arxiv.org/abs/1201.4411v1

P. \'Alvarez, P. Gorria, J.L. S\'anchez Llamazares, M.J. P\'erez, V. Franco, M. Reiffers, J. Kov\'a\v{c}, I. Puente-Orench, J.

Physics

Condensed Matter

Materials Science

Preprint, 5 pages (postprint), 4 figures, regular paper

Scientific paper

10.1016/j.matchemphys.2011.09.06

We have synthesized the intermetallic YPrFe17 compound by arc-melting. X-ray and neutron powder diffraction show that the crystal structure is rhombohedral with View the MathML source space group (Th2Zn17-type). The investigated compound exhibits a broad isothermal magnetic entropy change {\Delta}SM(T) associated with the ferro-to-paramagnetic phase transition (TC \approx 290 K). The |{\Delta}SM| (\approx 2.3 J kg-1 K-1) and the relative cooling power (\approx 100 J kg-1) have been calculated for applied magnetic field changes up to 1.5 T. A single master curve for {\Delta}SM under different values of the magnetic field change can be obtained by a rescaling of the temperature axis. The results are compared and discussed in terms of the magneto-caloric effect in the isostructural R2Fe17 (R = Y, Pr and Nd) binary intermetallic alloys.

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