Magnetic properties and magnetocaloric effect of Nd(Mn1-xFex)(2)Ge-2 compounds

doi:10.1016/j.jallcom.2009.09.078

IMR OpenIR

	Magnetic properties and magnetocaloric effect of Nd(Mn1-xFex)(2)Ge-2 compounds
	Chen, Y. Q.1; Luo, J.1; Liang, J. K.1,2; Li, J. B.1; Rao, G. H.1
通讯作者	Luo, J.(jluo@aphy.iphy.ac.cn)
	2010-01-07
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	489 期号:1 页码:13-19
摘要	Polycrystalline Nd(Mn1-xFex)(2)Ge-2 (0 <= x <= 1) compounds have been prepared by arc-melting. X-ray powder diffraction analysis shows that all samples crystallize in the ThCr2Si2-type structure with the space group 14/mmm. The substitution of Fe for Mn results in decreases of the lattice constants a, c and the unit-cell volume V. Magnetic properties and magnetocaloric effect of the compounds Nd(Mn0.9Fe0.1)(2)Ge-2 and Nd(Mn0.8Fe0.2)(2)Ge-2 have been studied by magnetic measurements. A spin reorientation transition at about 188 K is observed for Nd(Mn0.9Fe0.1)(2)Ge-2. The Nd(Mn0.8Fe0.2)(2)Ge-2 compound shows more complicated magnetic behavior, which is characterized by four magnetic ordering states below room temperature. The maximum values of the magnetic entropy change are 2.35 and 1.84 J kg(-1) K-1 for x = 0.1 and 0.2, respectively, under the applied field changing from 0 to 5T. The relative cooling powers of Nd(Mn0.9Fe0.1)(2)Ge-2 and Nd(Mn0.8Fe0.2)(2)Ge-2 are 145.9 and 133.8 J kg(-1) under an applied field change of 5T. (C) 2009 Elsevier B.V. All rights reserved.
关键词	Metals and alloys Magnetocaloric X-ray diffraction
资助者	National Basic Research Program of China
DOI	10.1016/j.jallcom.2009.09.078
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2006CB601101]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000273204100007
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：15[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/321006/101865
专题	中国科学院金属研究所
通讯作者	Luo, J.
作者单位	1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Y. Q.,Luo, J.,Liang, J. K.,et al. Magnetic properties and magnetocaloric effect of Nd(Mn1-xFex)(2)Ge-2 compounds[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2010,489(1):13-19.
APA	Chen, Y. Q.,Luo, J.,Liang, J. K.,Li, J. B.,&Rao, G. H..(2010).Magnetic properties and magnetocaloric effect of Nd(Mn1-xFex)(2)Ge-2 compounds.JOURNAL OF ALLOYS AND COMPOUNDS,489(1),13-19.
MLA	Chen, Y. Q.,et al."Magnetic properties and magnetocaloric effect of Nd(Mn1-xFex)(2)Ge-2 compounds".JOURNAL OF ALLOYS AND COMPOUNDS 489.1(2010):13-19.