Magnetic properties of Sm2Fe17Nx, x=3.9

被引：11
作者：
Brennan, S
Rao, XL
Skomski, R
Dempsey, N
Coey, JMD
机构：
[1] Department of Physics, Trinity College
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1996年 / 157卷
关键词：
RE-TM alloys; interstitial nitrides; magnetocrystalline anisotropy; Mossbauer spectroscopy; RE-TM compounds;
D O I：
10.1016/0304-8853(95)01031-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hydrogen decrepitation of Sm2Fe17 followed by treatment in ammonia produces interstitial nitrides with nitrogen concentrations greater than three per formula unit. Measurements of the lattice parameters and magnetic properties are consistent with interstitial nitrogen occupation of the 9e and either the 3b or 18g sites. The effect of the extra nitrogen on the iron sublattice is to reduce the overall moment, particularly of the 18h sites. The magnetocrystalline anisotropy constants K-1 and K-2 indicate a significant decrease in the easy-axis character compared to Sm2Fe17N3 material.
引用
收藏
页码：510 / 511
页数：2
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