期刊
APPLIED PHYSICS LETTERS
卷 103, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4816729
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资金
- National Natural Science Foundation of China [51271192, 11004204, 11104337, 11274357]
- Hi-Tech Research and Development program of China [2011AA03A404]
- Knowledge Innovation Project of the Chinese Academy of Sciences
The magnetic properties and magnetocaloric effect in TmGa compound are investigated. TmGa exhibits two successive magnetic transitions: ferromagnetic-antiferromagnetic at T-FA = 12 K and antiferromagnetic-paramagnetic transition at T-N = 15 K. Under field changes of 1 and 2 T, giant reversible values of magnetic entropy change (12.9 and 20.6 J/kg K) and large values of refrigerant capacity (69 and 149 J/kg) are observed, respectively. Additionally, the maximal values of adiabatic temperature change are 3.2 and 5 K for field changes of 1 and 2 T, respectively. The TmGa compound with excellent magnetocaloric effect is expected to have effective applications in low temperature magnetic refrigeration. (C) 2013 AIP Publishing LLC.
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