Abstract
Large reversible magnetocaloric effect, which is associated with a second-order magnetic transition at 28 K, has been observed in DyCuAl compound. The maximum values of magnetic entropy change −ΔSM and adiabatic temperature change ΔTad are 20.4 J kg−1 K−1 and 7.7 K for a field change of 0–5 T, respectively. Especially, the large values of −ΔSM (10.9 J kg−1 K−1) and ΔTad (3.6 K) with a considerable refrigerant capacity value of 150 J kg−1 are also obtained for a relatively low field change of 0–2 T, suggesting that DyCuAl compound could be considered as a good candidate for low-temperature magnetic refrigerant.
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