Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 656, Issue -, Pages 635-639Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.10.026
Keywords
TmZnAl compound; TmAgAl compound; Magnetocaloric effect; Magnetic properties; Magnetic phase transition
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Funding
- National Natural Science Foundation of China [51501036]
- Alexander von Humboldt (AvH) Foundation
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The magnetic and magnetocaloric properties in the equiatomic intermetallic compounds of TmZnAl and TmAgAl have been investigated. The compounds undergo a second order magnetic transition from paramagnetic to ferromagnetic state around its own Curie temperatures T-C similar to 2.8 K and 3.3 K for TmZnAl and TmAgAl, respectively. A considerable reversible magnetocaloric effect (MCE) was observed at low temperature. For a magnetic field change of 7 T, the maximum values of magnetic entropy change (-Delta S-M(max)) and relative cooling power (RCP) are 11.8 J/kg K and 289 J/kg for TmZnAl, respectively, and the corresponding values for TmAgAl are 14.1 J/kg K and 315 J/kg. (C) 2015 Elsevier B.V. All rights reserved.
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