Low-temperature large magnetocaloric effect in the antiferromagnetic CeSi compound

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	Low-temperature large magnetocaloric effect in the antiferromagnetic CeSi compound
	Wang, LC ; Dong, QY ; Lu, J ; Shao, XP ; Mo, ZJ ; Xu, ZY ; Sun, JR ; Hu, FX ; Shen, BG
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2014
卷号	587 页码:10
关键词	CeSi Antiferromagnetic Metamagnetic transition Magnetocaloric effect Quartet ground state
ISSN号	0925-8388
通讯作者	Shen, BG (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China.
中文摘要	Magnetic properties and magnetocaloric effect (MCE) of the CeSi compound are investigated. The compound is determined to be antiferromagnet with the Neel temperature T-N = 6.1 K. A metamagnetic transition from antiferromagnetic (AFM) to ferromagnetic (FM) state occurs at 2 K under an applied magnetic field of 4 kOe. Field variation generates a large MCE and no magnetic hysteresis loss is observed. The maximum values of magnetic entropy change (Delta S) are found to be -7.2 J/kg K and -13.7 J/kg K for the field changes of 0-20 kOe and 0-50 kOe, respectively. The large Delta S with no hysteresis loss as well as low price of crude materials make CeSi a competitive candidate for low temperature magnetic refrigerant. In addition, the unusual magnetism in CeSi can be attributed to the appearance of a quartet ground state. (C) 2013 Elsevier B.V. All rights reserved.
资助信息	National Natural Science Foundation of China [11274357, 51021061, 51271196]; Chinese Academy of Sciences; Hi-Tech Research and Development program of China [2011AA03A404]; National Basic Research Program of China [2010CB833102]; [2012D005016000002]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59126]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, LC,Dong, QY,Lu, J,et al. Low-temperature large magnetocaloric effect in the antiferromagnetic CeSi compound[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2014,587:10.
APA	Wang, LC.,Dong, QY.,Lu, J.,Shao, XP.,Mo, ZJ.,...&Shen, BG.(2014).Low-temperature large magnetocaloric effect in the antiferromagnetic CeSi compound.JOURNAL OF ALLOYS AND COMPOUNDS,587,10.
MLA	Wang, LC,et al."Low-temperature large magnetocaloric effect in the antiferromagnetic CeSi compound".JOURNAL OF ALLOYS AND COMPOUNDS 587(2014):10.