Giant magnetic refrigerant capacity in Ho3Al2 compound

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	Giant magnetic refrigerant capacity in Ho3Al2 compound
	Zhang, H ; Xu, ZY ; Zheng, XQ ; Shen, J ; Hua, FX ; Sun, JR ; Shen, BG
刊名	SOLID STATE COMMUNICATIONS
	2012
卷号	152 期号:13 页码:1127
关键词	ENTROPY CHANGE METAMAGNETIC TRANSITION INTERMETALLIC COMPOUNDS TEMPERATURE ALLOYS HEAT
ISSN号	0038-1098
通讯作者	Zhang, H: Chinese Acad Sci, State Key Lab Magnetism, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	Magnetic properties and magnetocaloric effects (MCEs) of the intermetallic Ho3Al2 compound are investigated by magnetization and heat capacity measurements. Two successive magnetic transitions, a spin-reorientation (SR) transition at T-SR=31 K followed by a ferromagnetic (FM) to paramagnetic (PM) transition at T-C=40 K, are observed. Both magnetic transitions contribute to the MCE and result in a large magnetic entropy change (Delta S-M) in a wide temperature range. The maximum values of -Delta S-M and adiabatic temperature change (Delta T-ad) reach 18.7 J/kg K and 4.8 K for the field changes of 0-5 T, respectively. In particular, a giant value of refrigerant capacity (RC) is estimated to be 704 J/kg for a field change of 5 T, which is much higher than those of many potential refrigerant materials with similar transition temperatures. (C) 2012 Elsevier Ltd. All rights reserved.
收录类别	SCI
资助信息	National Natural Science Foundation of China; Chinese Academy of Sciences; Hi-Tech Research and Development program of China; China Postdoctoral Science Foundation
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/38732]
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	Zhang, H,Xu, ZY,Zheng, XQ,et al. Giant magnetic refrigerant capacity in Ho3Al2 compound[J]. SOLID STATE COMMUNICATIONS,2012,152(13):1127.
APA	Zhang, H.,Xu, ZY.,Zheng, XQ.,Shen, J.,Hua, FX.,...&Shen, BG.(2012).Giant magnetic refrigerant capacity in Ho3Al2 compound.SOLID STATE COMMUNICATIONS,152(13),1127.
MLA	Zhang, H,et al."Giant magnetic refrigerant capacity in Ho3Al2 compound".SOLID STATE COMMUNICATIONS 152.13(2012):1127.