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arXiv · 1201.4411

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

Pablo Álvarez·Pedro Gorria·José L. Sánchez Llamazares·María J. Pérez·Victorino Franco·Marian Reiffers·Jozef Kovác·Inés Puente-Orench·Jesús A. Blanco
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Abstract

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 ΔSM(T) associated with the ferro-to-paramagnetic phase transition (TC \approx 290 K). The |ΔSM| (\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 ΔSM 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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Pablo Álvarez, Pedro Gorria, José L. Sánchez Llamazares, María J. Pérez, Victorino Franco, Marian Reiffers, Jozef Kovác, Inés Puente-Orench, Jesús A. Blanco. 2012-01-21. Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound. https://doi.org/10.1016/j.matchemphys.2011.09.062

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