Reversible adiabatic temperature changes at the magnetocaloric and barocaloric effects in Fe49Rh51

We report on the adiabatic temperature changes (ΔT) associated with the magnetocaloric and barocaloric effects in a Fe49Rh51 alloy. For the magnetocaloric effect, data derived from entropy curves are compared to direct thermometry measurements. The agreement between the two sets of data provides sup...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2015-10, Vol.107 (15)
Main Authors: Stern-Taulats, Enric, Gràcia-Condal, Adrià, Planes, Antoni, Lloveras, Pol, Barrio, Maria, Tamarit, Josep-Lluís, Pramanick, Sabyasachi, Majumdar, Subham, Mañosa, Lluís
Format: Article
Language:English
Subjects:
Adiabatic flow
Applied physics
Compound
Entropia
Entropy
Física
Hidràulica
Hydraulics
Hydrostatic pressure
Magnetic fields
Magnetism
Magnetisme
Phase
Refrigeration
Reproducibility
Termodinàmica
Àrees temàtiques de la UPC
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report on the adiabatic temperature changes (ΔT) associated with the magnetocaloric and barocaloric effects in a Fe49Rh51 alloy. For the magnetocaloric effect, data derived from entropy curves are compared to direct thermometry measurements. The agreement between the two sets of data provides support to the estimation of ΔT for the barocaloric effect, which are indirectly determined from entropy curves. Large ΔT values are obtained at relatively low values of magnetic field (2 T) and hydrostatic pressure (2.5 kbar). It is also shown that both magnetocaloric and barocaloric effects exhibit good reproducibility upon magnetic field and hydrostatic pressure cycling, over a considerable temperature range.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4933409