Impurity effect of carbon on structure and saturation magnetization of Fe-N films

被引：6

作者：

Takahashi, Y ^{[1
]}

Shoji, H ^{[1
]}

Takahashi, M ^{[1
]}

机构：

[1] Tohoku Univ, Dept Elect Engn, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2000年 / 210卷 / 1-3期

关键词：

substitution; saturation magnetization; impurity effect;

D O I：

10.1016/S0304-8853(99)00596-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe-C-N (C = 0.9-2.5 at% N = 0-16.5 at%) films have been formed on MgO single-crystal substrates using reactive sputtering. Impurity effect df C atoms on the structure and magnetic moment are discussed. The results can be summarized as follows: (1) In alpha'-Fe-C-N films, N and C atoms are interstitially located along c direction. (2) Substituting N of alpha'-Fe16N2 by C, the phase decomposition temperature from alpha' to alpha and gamma' increases with increasing C content. (3) sigma(s) decreases by substituting N of alpha'-Fe16N2 by C. (4) A giant magnetic moment in the Fe-N system does not originate from impurity effect of C atoms. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：333 / 340

页数：8

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