Magnetocaloric Effect in Antiferromagnetic Half-Heusler Alloy DyNiSb |
| K. Synoradzki, K. Ciesielski and D. Kaczorowski
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Wrocław, Poland |
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| The low-temperature magnetic, thermal and magnetocaloric properties of the half-Heusler compound DyNiSb were studied on polycrystalline samples. The temperature variations of the magnetization and the heat capacity revealed a phase transition from paramagnetic to antiferromagnetic state at the Néel temperature TN = 3.1 K. The compound exhibits normal and inverse magnetocaloric effect with the isothermal magnetic entropy change reaching 5.2 J/(kg K) at 4.8 K for a magnetic field change of 3 T. The estimated refrigerant capacity is about 58 J/kg. |
DOI: 10.12693/APhysPolA.133.691 PACS numbers: 75.50.Ee, 75.30.Sg |