Large cryogenic magnetocaloric effect of DyCo(2) nanoparticles without encapsulation

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	Large cryogenic magnetocaloric effect of DyCo(2) nanoparticles without encapsulation
	S. Ma; W. B. Cui; D. Li; N. K. Sun; D. Y. Geng; X. Jiang; Z. D. Zhang
	2008
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	92 期号:17
摘要	The structure and formation of nanoparticles without encapsulation of the intermetallic compound DyCo(2) were investigated by using x-ray diffraction and high-resolution transmission electron microscopy. The DyCo(2) nanoparticles are stable in air without any shell protection. A large magnetic-entropy change of 13.2 J kg(-1) K(-1) was found at 7.5 K in an applied-field change from 1 to 7 T, which is ascribed to the large magnetic moment density and the weak interaction energy in the nanoparticles. Such oxidation-resistant rare-earth transition-metal compound nanoparticles with large cryogenic magnetocaloric effect are useful for refrigeration applications at low temperatures. (c) 2008 American Institute of Physics.
部门归属	[ma, s.; cui, w. b.; li, d.; sun, n. k.; geng, d. y.; zhang, z. d.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [ma, s.; cui, w. b.; li, d.; sun, n. k.; geng, d. y.; zhang, z. d.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [ma, s.; jiang, x.] univ siegen, inst mat engn, d-57076 siegen, germany.;ma, s (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;song.ma@uni-siegen.de
关键词	Transition Compound Behavior
URL	查看原文
WOS记录号	WOS:000255524000068
引用统计	被引频次：35[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/321006/33021
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Ma,W. B. Cui,D. Li,et al. Large cryogenic magnetocaloric effect of DyCo(2) nanoparticles without encapsulation[J]. Applied Physics Letters,2008,92(17).
APA	S. Ma.,W. B. Cui.,D. Li.,N. K. Sun.,D. Y. Geng.,...&Z. D. Zhang.(2008).Large cryogenic magnetocaloric effect of DyCo(2) nanoparticles without encapsulation.Applied Physics Letters,92(17).
MLA	S. Ma,et al."Large cryogenic magnetocaloric effect of DyCo(2) nanoparticles without encapsulation".Applied Physics Letters 92.17(2008).