Magnetic properties and magnetocaloric effect of GdGa compound

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	Magnetic properties and magnetocaloric effect of GdGa compound
	J. Y. Zhang; J. Luo; J. B. Li; J. K. Liang; Y. C. Wang; L. N. Ji; Y. H. Liu; G. H. Rao
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	469 期号:1-2 页码:15-19
摘要	Polycrystalline GdGa compound was prepared by arc-melting method. X-ray powder diffraction reveals that GdGa crystallizes in the CrB-type structure. The Curie temperature of the compound is 183 K. A distinct peak associated with spin reorientation transition was shown around 100 K on the magnetization versus temperature Curve measured in a field of 0.05T. Isothermal magnetic entropy change (vertical bar Delta S(M)vertical bar) was estimated based on the magnetization isotherms. The maximum value of vertical bar Delta S(M)vertical bar is 4.81 J kg(-1) K(-1) under the apphed field changing from 0T to 5.0 T. The relative cooling power (RCP(S)) of GdGa compound is about 576 J kg(-1) under an applied field change of 5 T. The specific heat of the compound has been estimated within the framework of Debye and mean field approximations to evaluate the adiabatic temperature change (Delta T(ad)). (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[zhang, j. y.; luo, j.; li, j. b.; liang, j. k.; wang, y. c.; ji, l. n.; liu, y. h.; rao, g. h.] chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. [liang, j. k.] acad sinica, int ctr mat phys, shenyang 110016, peoples r china.;liang, jk (reprint author), chinese acad sci, inst phys, beijing natl lab condensed matter phys, pob 603, beijing 100080, peoples r china;jkliang@apby.iphy.ac.cn
关键词	Crb-type Structure Heat Capacity Magnetocaloric Effect Intermetallic Compounds Gallium Compounds Room-temperature Single-crystal Entropy Change Refrigeration Perovskite Rga
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WOS记录号	WOS:000263801500007
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32552
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Y. Zhang,J. Luo,J. B. Li,et al. Magnetic properties and magnetocaloric effect of GdGa compound[J]. Journal of Alloys and Compounds,2009,469(1-2):15-19.
APA	J. Y. Zhang.,J. Luo.,J. B. Li.,J. K. Liang.,Y. C. Wang.,...&G. H. Rao.(2009).Magnetic properties and magnetocaloric effect of GdGa compound.Journal of Alloys and Compounds,469(1-2),15-19.
MLA	J. Y. Zhang,et al."Magnetic properties and magnetocaloric effect of GdGa compound".Journal of Alloys and Compounds 469.1-2(2009):15-19.