Crystal structure and magnetic properties of Nd1-xYxCo6.86Hf0.14 compounds

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	Crystal structure and magnetic properties of Nd1-xYxCo6.86Hf0.14 compounds
	J. Luo; J. K. Liang; Y. Q. Guo; Q. L. Liu; F. S. Liu; Y. Zhang; L. T. Yang; G. H. Rao
	2005
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	292 页码:178-185
摘要	The Nd1-xYxCo6.86Hf0.14 compounds with x = 0-0.4 have been investigated by means of X-ray powder diffraction and magnetic measurements. The as-cast Nd1-xYx(Co,Hf)(7) compounds crystallize in the hexagonal TbCu7-type structure with the space group P6/mmm. The lattice parameter a and the cell volume V decrease linearly with the Y content while c holds almost constant. The saturation moment per formula unit decreases linearly with the Y content, but the saturation moment per Co atom increases with the Y content. The Curie temperature and the magnetic anisotropy field of the compounds increase with the Y content. The increase of the Curie temperature is mainly related to the increase of the Co-Co exchange interaction due to the volume reduction effect. The Nd1-xYx(Co,Hf)(7) compounds with x = 0-0.4 show basal plane anisotropy at 5 K. The room temperature easy magnetization direction of the Nd1-xYx(Co,Hf)(7) compounds changes from basal plane to c-axis with increase in the Y content. The spin reorientation (SR) transition has been found in the Nd1-xYx(Co,Hf)(7) compounds and the SR temperature decreases with the Y content. (c) 2004 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 110016, peoples r china. cent iron & steel res inst, inst funct mat, beijing 100081, peoples r china.;luo, j (reprint author), chinese acad sci, inst phys, beijing natl lab condensed matter phys, pob 603, beijing 100080, peoples r china;jluo@aphy.iphy.ac.cn jkliang@aphy.iphy.ac.cn
关键词	Magnetically Ordered Materials X-ray Scattering Spin Reorientation Spin-reorientation Rare-earth Exchange Interactions Thermal-expansion Single-crystal Ndco5 Temperature Cu Alloys Gd
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34967
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Luo,J. K. Liang,Y. Q. Guo,et al. Crystal structure and magnetic properties of Nd1-xYxCo6.86Hf0.14 compounds[J]. Journal of Magnetism and Magnetic Materials,2005,292:178-185.
APA	J. Luo.,J. K. Liang.,Y. Q. Guo.,Q. L. Liu.,F. S. Liu.,...&G. H. Rao.(2005).Crystal structure and magnetic properties of Nd1-xYxCo6.86Hf0.14 compounds.Journal of Magnetism and Magnetic Materials,292,178-185.
MLA	J. Luo,et al."Crystal structure and magnetic properties of Nd1-xYxCo6.86Hf0.14 compounds".Journal of Magnetism and Magnetic Materials 292(2005):178-185.