Structural and magnetic properties of arc-melted RFe(10)V(2) carbides (R=Y or Sm)

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	Structural and magnetic properties of arc-melted RFe(10)V(2) carbides (R=Y or Sm)
	X. L. Dong; Z. D. Zhang; H. T. Kim; D. Zhang; X. C. Kou; W. Liu; X. K. Sun; Y. C. Chuang; B. S. Zhang; H. L. Du
	1996
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	8 期号:33 页码:6079-6085
摘要	Using x-ray diffraction, powder neutron diffraction, high-field magnetization measurement and thermomagnetic analysis, we have studied the structural and magnetic properties of RFe(10)V(2)C(0.5) alloys (R = Sm or Y) made by are melting, in which the carbon was added using Fe-C alloy. Both samples are found to be nearly single phase with ThMn12-type structure and with a small amount of alpha-Fe phase (less than 4 wt%). The neutron diffraction of the Y-containing compound indicates that the real composition of the main phase is Y(Fe9.87V1.90C0.23)C-0.27. and that the carbon atoms occupy not only the interstitial 2b site but also the substitutional 8i site. The Fe moments of the 8i site as well as the 8j site are found to be reduced in the Y(Fe9.87V1.90C0.27)C-0.27 compound compared with its carbon-free counterpart. The decrease in the Fe moment at the 8j site is due to the surrounding interstitial carbon atoms, while the decrease in the Fe moment at the 8i site is ascribed to the surrounding substitutional carbon atoms as nearest neighbours. The high-field magnetization measurements indicate that the anistropy held of SmFe10V2C0.5 and YFe10V2C0.5 are slightly higher than those of SmFe10V2 and YFe10V2, respectively. In SmFe10V2C0.5, the magnetization curve in the hard direction at 4.2 K shows a first-order-magnetization-process (FOMP)-like or quasi-FOMP-like transition.
部门归属	chungnam natl univ,dept met engn,taejon 306764,south korea. inst atom energy,beijing 102413,peoples r china.;dong, xl (reprint author), acad sinica,inst met res,shenyang 110015,peoples r china
关键词	Intermetallics y(Fe11ti) Nitride Metal Gd Tm c)
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38271
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. L. Dong,Z. D. Zhang,H. T. Kim,et al. Structural and magnetic properties of arc-melted RFe(10)V(2) carbides (R=Y or Sm)[J]. Journal of Physics-Condensed Matter,1996,8(33):6079-6085.
APA	X. L. Dong.,Z. D. Zhang.,H. T. Kim.,D. Zhang.,X. C. Kou.,...&H. L. Du.(1996).Structural and magnetic properties of arc-melted RFe(10)V(2) carbides (R=Y or Sm).Journal of Physics-Condensed Matter,8(33),6079-6085.
MLA	X. L. Dong,et al."Structural and magnetic properties of arc-melted RFe(10)V(2) carbides (R=Y or Sm)".Journal of Physics-Condensed Matter 8.33(1996):6079-6085.