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
	2001
发表期刊	Ieee Transactions on Magnetics
ISSN	0018-9464
卷号	37 期号:4 页码:2693-2695
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.
部门归属	acad sinica, inst met res, int ctr mat phys, shenyang 110015, peoples r china. louisiana tech univ, inst micromfg, ruston, la 71272 usa. univ brighton, sch engn, brighton bn2 4gj, e sussex, england.;guo, zj (reprint author), acad sinica, inst met res, int ctr mat phys, shenyang 110015, peoples r china
关键词	Exchange Interaction Intersublattice Coupling Magnetostriction Molecular Field Magnetostriction Intermetallics Alloys
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WOS记录号	WOS:000170910900451
引用统计	被引频次：1[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/321006/36658
专题	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.