Structure, magnetic properties, and magnetostriction of (Tb1-xNdx)(Fe0.4Co0.6)(1.9)

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	Structure, magnetic properties, and magnetostriction of (Tb1-xNdx)(Fe0.4Co0.6)(1.9)
	Z. J. Guo; S. C. Busbridge; B. W. Wang; Z. D. Zhang; X. G. Zhao; D. Y. Geng
	1999
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	86 期号:11 页码:6310-6314
摘要	The structure and magnetostriction of (Tb1-xNdx)(Fe0.4Co0.6)(1.9) (0 < x < 1) alloys have been investigated at room temperature and the magnetic properties determined over the temperature range 1.5-300 K. It was found that the matrix of (Tb1-xNdx)(Fe0.4Co0.6)(1.9) is essentially that of a (Tb,Nd) (Fe,Co)(2) phase with a MgCu2-type cubic Laves structure for all values of x. The lattice parameter of the Laves phase increases from 0.7297 to 0.7363 nm as x increases from 0 to 1 and obeys Vegard's law. We have measured the Curie temperature to decrease with increasing x from 667 K for Tb(Fe0.4Co0.6)Fe-1.9 to 454 K for Nd(Fe0.4Co0.6)Fe-1.9. The resultant macroscopic magnetization becomes zero when x = 0.45 at a temperature of 1.5 K. At 300 K, a slightly smaller value of x is found to produce no resultant magnetization, and the spontaneous magnetostriction constant lambda(111) decreases slowly with increasing Nd content and vanishes abruptly from a value of 1630 x 10(-6) when x > 0.65. The polycrystalline isofield magnetostriction curves exhibit a minimum at x = 0.45 and a peak at x = 0.65. The observed behavior can be explained on the basis of opposing rare-earth Tb and Nd moments and an anisotropy minimum close to x = 0.65. As the temperature is reduced below 300 K, the spin reorientation occurs at greater Nd concentrations. (C) 1999 American Institute of Physics. [S0021-8979(99)05423-7].
部门归属	univ brighton, sch engn, brighton bn2 4gj, e sussex, england. acad sinica, inst met res, shenyang 110015, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;busbridge, sc (reprint author), univ brighton, sch engn, brighton bn2 4gj, e sussex, england
关键词	Magnetoelastic Properties Alloys
URL	查看原文
WOS记录号	WOS:000083729000063
引用统计	被引频次：11[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/321006/37361
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Guo,S. C. Busbridge,B. W. Wang,et al. Structure, magnetic properties, and magnetostriction of (Tb1-xNdx)(Fe0.4Co0.6)(1.9)[J]. Journal of Applied Physics,1999,86(11):6310-6314.
APA	Z. J. Guo,S. C. Busbridge,B. W. Wang,Z. D. Zhang,X. G. Zhao,&D. Y. Geng.(1999).Structure, magnetic properties, and magnetostriction of (Tb1-xNdx)(Fe0.4Co0.6)(1.9).Journal of Applied Physics,86(11),6310-6314.
MLA	Z. J. Guo,et al."Structure, magnetic properties, and magnetostriction of (Tb1-xNdx)(Fe0.4Co0.6)(1.9)".Journal of Applied Physics 86.11(1999):6310-6314.