Reversible magnetocaloric effect and refrigeration capacity enhanced by two successive magnetic transitions in DyB2

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	Reversible magnetocaloric effect and refrigeration capacity enhanced by two successive magnetic transitions in DyB2
	H. Meng; B. Li; Z. Han; Y. Q. Zhang; X. W. Wang; Z. D. Zhang
	2012
发表期刊	Science China-Technological Sciences
ISSN	1674-7321
卷号	55 期号:2 页码:501-504
摘要	A large and reversible magnetocaloric effect is found in the compound DyB2, which is associated with two successive magnetic transitions: a spin-reorientation-like transition followed by a ferromagnetic-paramagnetic transition. These two transitions appreciably enlarge the magnetic-refrigeration temperature window and yield a huge refrigeration capacity of 610 J kg(-1), with a maximum magnetic entropy change -Delta S-max of 17 J kg(-1)K(-1), at a magnetic-field change of 5 T. The corresponding values for low magnetic-field change of 2 T are 193 J kg(-1) and 7.4 J kg(-1)K(-1), respectively.
部门归属	[meng hui] chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, inst met res, shenyang 110016, peoples r china.;meng, h (reprint author), chinese acad sci, shenyang natl lab mat sci, shenyang 110016, peoples r china.;mengphysto@gmail.com
关键词	Dyb2 Magnetocaloric Effect Refrigeration Capacity Entropy
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60158
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Meng,B. Li,Z. Han,et al. Reversible magnetocaloric effect and refrigeration capacity enhanced by two successive magnetic transitions in DyB2[J]. Science China-Technological Sciences,2012,55(2):501-504.
APA	H. Meng,B. Li,Z. Han,Y. Q. Zhang,X. W. Wang,&Z. D. Zhang.(2012).Reversible magnetocaloric effect and refrigeration capacity enhanced by two successive magnetic transitions in DyB2.Science China-Technological Sciences,55(2),501-504.
MLA	H. Meng,et al."Reversible magnetocaloric effect and refrigeration capacity enhanced by two successive magnetic transitions in DyB2".Science China-Technological Sciences 55.2(2012):501-504.