Structure and intrinsic magnetic properties of Sm(Fe,Si)9 alloys

被引：3
|
作者：
Nandra, A.
Bessais, L.
Djega-Mariadassou, C.
Burzo, E.
机构：
[1] CNRS, UPR 209, LCMTR, F-94320 Thiais, France
[2] Univ Babes Bolyai, Fac Fiz, R-3400 Cluj Napoca, Romania
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
nanocrystalline metastable materials; rare-earth-transition metal alloys; Mossbauer spectroscopy;
D O I：
10.1016/j.jmmm.2003.12.301
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Si on nanocrystalline metastable P6/mmm SmFe9 alloys was studied. The diffraction domain sizes derived from Rietveld analysis are confirmed by high-resolution transmission electron microscopy. The Curie temperature and the mean magnetic moment per Fe atom increase with Si content. T-C is raised around 30 K compared to the equilibrium Sm-2(Fe,Si)(17) alloys. The hyperfine parameter sets were assigned according to the relationship between the Wigner-Seitz cell volume of each iron site and their isomer shift. Si occupies the 3g site. The hyperfine field decreases with silicon content. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：E1243 / E1244
页数：2
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