THE MAGNETIZATION OF ALPHA''FE16N2

被引:98
作者
COEY, JMD
ODONNELL, K
QINIAN, Q
TOUCHAIS, E
JACK, KH
机构
[1] Department of Pure and Applied Physics, Trinity College
[2] Cookson House, Tyne and Wear NE28 6UQ, Willington Quay. Wallsend
[3] DRFMUPSI, Centre d'Etudes Nucltaires de Grenoble
关键词
D O I
10.1088/0953-8984/6/4/001
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Powder and foils containing up to 40% alpha''Fe16N2 have been prepared by annealing nitrogen-martensite. The magnetization of the alpha'' phase is deduced from magnetization measurements, coupled with a quantitative phase analysis based on Mossbauer spectra. At room temperature the values are 225-270 J T-1 kg(-1) corresponding to J(S) = 2.1-2.5 T. The average iron moment at T similar to 0 K is 2.3-2.6 mu(B), which is in accord with the results of spin-polarized band structure calculations.
引用
收藏
页码:L23 / L28
页数:6
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