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
	2006
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	419 期号:1-2 页码:15-20
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.
部门归属	chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;rao, gh (reprint author), chinese acad sci, inst phys, beijing natl lab condensed matter phys, beijing 100080, peoples r china;ghrao@aphy.iphy.ac.cn
关键词	Mixed Rare Earth Compounds Crystal Structure Magnetic Properties Magnetovolume Effect Anomalous Compressibility Transition R2fe17
URL	查看原文
WOS记录号	WOS:000238991900004
引用统计	被引频次：8[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/321006/34603
专题	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.