Influence of aluminum additions on exchange interaction and magneto striction of Sm0.9Pr0.1Fe2

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	Influence of aluminum additions on exchange interaction and magneto striction of Sm0.9Pr0.1Fe2
	Z. J. Guo ; Z. D. Zhang ; X. G. Zhao ; W. Liu ; X. M. Jin ; D. Y. Geng ; J. P. Liu ; S. C. Busbridge
刊名	Ieee Transactions on Magnetics
	2001
卷号	37 期号:4 页码:2693-2695
关键词	exchange interaction intersublattice coupling magnetostriction molecular field magnetostriction intermetallics alloys
ISSN号	0018-9464
中文摘要	Structure, exchange interaction, magnetic properties and magnetostriction of a series of cubic C15 MgCu2-type rare-earth transition-metal (R-T) compounds of Sm0.9Pr0.1 (Fe1-xAlx)(2) (0 less than or equal to x less than or equal to 0.2) have been studied by x-ray diffraction, A. C. initial susceptibility, vibrating samples magnetometer and standard strain technology. The substitution of Al for Fe leads to an expansion of the lattice parameter a by 5.1%. Curie temperature T-c is reduced continuously by replacing Fe with Al, which is ascribed to the decrease of the R-T coupling strength. The intersublattice coupling constant J(RT), molecular field coefficient n(RT), and exchange field B-ex, are evaluated by a molecular field model. The decrease of J(RT) with increasing Al content is related to the decrease of the number of (Sm, Pr)-Fe interacting pairs. Both the magnetostriction constant lambda (111) and the polycrystalline saturation magnetostriction lambda (s) at room temperature decrease with the Al addition, which can be ascribed to the decrease of the coupling strength.
原文出处	://WOS:000170910900451
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/36658]
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	Z. J. Guo,Z. D. Zhang,X. G. Zhao,et al. Influence of aluminum additions on exchange interaction and magneto striction of Sm0.9Pr0.1Fe2[J]. Ieee Transactions on Magnetics,2001,37(4):2693-2695.
APA	Z. J. Guo.,Z. D. Zhang.,X. G. Zhao.,W. Liu.,X. M. Jin.,...&S. C. Busbridge.(2001).Influence of aluminum additions on exchange interaction and magneto striction of Sm0.9Pr0.1Fe2.Ieee Transactions on Magnetics,37(4),2693-2695.
MLA	Z. J. Guo,et al."Influence of aluminum additions on exchange interaction and magneto striction of Sm0.9Pr0.1Fe2".Ieee Transactions on Magnetics 37.4(2001):2693-2695.