Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds

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	Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds; Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds
	W. B. Cui; W. Liu; X. H. Liu; S. Guo; Z. Han; X. G. Zhao; Z. D. Zhang
	2009 ; 2009
发表期刊	Journal of Alloys and Compounds ; Journal of Alloys and Compounds
ISSN	0925-8388 ; 0925-8388
卷号	479 期号:1-2 页码:189-192
摘要	The magnetocaloric effects in MnAs(1-x)Si(x) (x=0.03, 0.06 and 0.09) compounds have been investigated. The Curie temperature can be tunable in a wide range by changing the Si content. With increasing Si doping, the thermal hysteresis is decreased to nearly zero (x>0.06) and the meta-magnetic transition becomes ambiguous, being a second-order-like one. The maximum of the magnetic entropy change is maintained above 10Jkg(-1) K(-1) and 5Jkg(-1) K(-1) in MnAs(1-x)Si(x) for the field change of 5T and 2T, respectively. These results indicate that the Si-doped MnAs compounds with reduced thermal hysteresis are potential candidates of the room-temperature magnetic refrigeration. (C) 2009 Elsevier B.V. All rights reserved.; The magnetocaloric effects in MnAs(1-x)Si(x) (x=0.03, 0.06 and 0.09) compounds have been investigated. The Curie temperature can be tunable in a wide range by changing the Si content. With increasing Si doping, the thermal hysteresis is decreased to nearly zero (x>0.06) and the meta-magnetic transition becomes ambiguous, being a second-order-like one. The maximum of the magnetic entropy change is maintained above 10Jkg(-1) K(-1) and 5Jkg(-1) K(-1) in MnAs(1-x)Si(x) for the field change of 5T and 2T, respectively. These results indicate that the Si-doped MnAs compounds with reduced thermal hysteresis are potential candidates of the room-temperature magnetic refrigeration. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[liu, w.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, w (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;wliu@imr.ac.cn ; [liu, w.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, w (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;wliu@imr.ac.cn
关键词	Magnetocaloric Effect Magnetocaloric Effect Curie Temperature Curie Temperature Metamagnetic Transition Metamagnetic Transition Thermal Hysteresis Thermal Hysteresis Transition Transition
URL	查看原文 ; 查看原文
WOS记录号	WOS:000267063300054 ; WOS:000267063300054
引用统计	被引频次：26[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/321006/31857
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. B. Cui,W. Liu,X. H. Liu,et al. Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds, Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds[J]. Journal of Alloys and Compounds, Journal of Alloys and Compounds,2009, 2009,479, 479(1-2):189-192, 189-192.
APA	W. B. Cui.,W. Liu.,X. H. Liu.,S. Guo.,Z. Han.,...&Z. D. Zhang.(2009).Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds.Journal of Alloys and Compounds,479(1-2),189-192.
MLA	W. B. Cui,et al."Magnetocaloric effects and reduced thermal hysteresis in Si-doped MnAs compounds".Journal of Alloys and Compounds 479.1-2(2009):189-192.