Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx

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	Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx
	Ren, WJ ; Li, B ; Liang, W ; Jin, CQ ; Zhang, ZD
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2014
卷号	596 页码:69
关键词	CrO2 Magnetocaloric effect Relative cooling power High-pressure synthesis
ISSN号	0925-8388
通讯作者	Ren, WJ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
中文摘要	We report the tuning of magnetic transition and associated reversible magnetocaloric effect in CrO2 F-x(x) by manipulating the doping levels. At x = 0.12, the magnetic transition occurs at room temperature, with magnetic-entropy changes of around 4 J kg (1) K (1) and relative cooling power of 388 J kg (1) at magnetic-field changes from 0 to 50 kOe. The reversibility is verified by negligible thermal and magnetic hysteresis, as well as the positive slope at Arrott plots. The complete phase diagram for electronic and magnetic states is drawn for CrO2 xFx. This work indicates CrO1.88F0.12 is a promising candidate for room temperature magnetic refrigeration because of the nature of second-order transition and abundance of elements involved. (C) 2014 Elsevier B. V. All rights reserved.
资助信息	National Basic Research Program [2012CB619404]; Ministry of Science and Technology of China; National Natural Science Foundation of China [51331006]
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/311004/59121]
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	Ren, WJ,Li, B,Liang, W,et al. Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2014,596:69.
APA	Ren, WJ,Li, B,Liang, W,Jin, CQ,&Zhang, ZD.(2014).Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx.JOURNAL OF ALLOYS AND COMPOUNDS,596,69.
MLA	Ren, WJ,et al."Tunable magnetic transition and reversible magnetocaloric effects at room temperature in transition-metal-oxyfluorides CrO2-xFx".JOURNAL OF ALLOYS AND COMPOUNDS 596(2014):69.