Influence of rare earth mixing on structural and magnetic properties of Nd2-xErxFe17 compounds

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	Influence of rare earth mixing on structural and magnetic properties of Nd2-xErxFe17 compounds
	Y. G. Xiao ; G. H. Rao ; Q. Zhang ; G. Y. Liu ; Y. Zhang ; J. K. Liang
刊名	Journal of Alloys and Compounds
	2006
卷号	419 期号:1-2 页码:15-20
关键词	mixed rare earth compounds crystal structure magnetic properties magnetovolume effect anomalous compressibility transition r2fe17
ISSN号	0925-8388
中文摘要	The crystal structure and magnetic properties of mixed rare earth Nd2-xErxFe17 compounds (0 <= x <= 2.0) were investigated by means of X-ray powder diffraction (XRD) and magnetic measurements. The compounds crystallize in the rhombohedral Th2Zn17-type structure for x <= 0.5 and in the hexagonal Th2Ni17-type structure for x = 2.0. Coexistence of the Th2Zn17- and the Th2Ni17-type structures is observed for x = 1.0 and 1.5. Violating the Gibbs' phase rule for a binary system, the linear decrease of the unit-cell volume with the Er concentration persists even in the two-phase region, implying an allotropic character of the coexisting Th2Zn17 and Th2Ni17 phases in the samples with x = 1.0 and 1.5. Thermomagnetic measurements show only one magnetic ordering temperature for the samples in the two-phase region, but temperature dependent XRD reveal obvious magnetovolume effects in both the phases around the magnetic ordering temperature. The saturation magnetization of the compounds exhibits a linear dependence on the Er concentration, indicating an ideal mixing effect of the rare earths on the magnetization in spite of the different crystal structures of the parent compounds. (c) 2005 Elsevier B.V. All rights reserved.
原文出处	://WOS:000238991900004
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34603]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. G. Xiao,G. H. Rao,Q. Zhang,et al. Influence of rare earth mixing on structural and magnetic properties of Nd2-xErxFe17 compounds[J]. Journal of Alloys and Compounds,2006,419(1-2):15-20.
APA	Y. G. Xiao,G. H. Rao,Q. Zhang,G. Y. Liu,Y. Zhang,&J. K. Liang.(2006).Influence of rare earth mixing on structural and magnetic properties of Nd2-xErxFe17 compounds.Journal of Alloys and Compounds,419(1-2),15-20.
MLA	Y. G. Xiao,et al."Influence of rare earth mixing on structural and magnetic properties of Nd2-xErxFe17 compounds".Journal of Alloys and Compounds 419.1-2(2006):15-20.