期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 757, 期 -, 页码 44-48出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.05.028
关键词
Rotating magnetocaloric effect; Magnetocaloric effect; NdGa single crystal; Magnetic refrigeration
资金
- National Natural Science Foundation of China [51671048, 11374081]
- Fundamental Research Funds for the Central Universities [N170904001, N170908001]
- Research Funds for Innovation Talents in Universities and Colleges of Liaoning Province [LR2016003]
The magnetic properties, magnetocaloric effect (MCE) and rotating magnetocaloric effect (RMCE) in NdGa single crystal were investigated. NdGa single crystal exhibits large magnetic anisotropy and a large MCE for magnetic field along c axis at T-c (Curie temperature) of 42 K with the maximum magnetic entropy change (-Delta S-M(max)) of 21.1 J/kg K (magnetic field change of 0-7 T). The rotating entropy change from the easy axis (c axis) to hard axis (b axis) (Delta S-R,S- (cb)) or NdGa single crystal reaches 16.6 J/kg K for the magnetic field of 7 T. Particularly, the value of Delta S-R,S- (cb) is as high as 10.1 J/kg K in a relative low magnetic field of 2 T. The large MCE and RMCE, especially under low magnetic field, indicated that the NdGa single crystal could be a promising candidate for practical magnetic refrigeration. (C) 2018 Elsevier B.V. All rights reserved.
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