α″-Fe16N2 problem — giant magnetic moment or not
α″-Fe16N2 problem — giant magnetic moment or not
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DOI：
10.1016/s0304-8853(99)00536-3
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发表时间：
2000-01
影响因子：
2.7
通讯作者：
M. Takahashi;H. Shoji
中科院分区：
文献类型：
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作者：
M. Takahashi;H. Shoji
我们从结构和磁矩方面综述了有巨磁矩和无巨磁矩的α”-Fe16N2薄膜的α”-Fe16N2问题的现状。 XRD和TEM分析结果没有显示出具有巨磁矩和不具有巨磁矩的α”-Fe16N2薄膜之间存在任何差异。每种情况下的穆斯堡尔谱都有很大不同。作者合成的 Fe16N2 薄膜的超精细场分为三个超精细场相互作用。而对于具有巨磁矩的Fe16N2，超精细场相互作用并未分裂，与纯α-Fe几乎相同。因此，穆斯堡尔谱的解释是解决α”-Fe16N2问题的关键。
We reviewed the present situation of the α″-Fe16N2problem for α″-Fe16N2films with and without giant magnetic moment in connection with structure and magnetic moment. The results of XRD and TEM analysis did not show any difference between α″-Fe16N2films with and without giant magnetic moment. The Mössbauer spectrum was quite different in each case. The hyperfine field of Fe16N2film synthesized by the present authors splits into three hyperfine field interactions. However for the Fe16N2with giant magnetic moment, hyperfine field interaction did not split and is almost the same as that of pure α-Fe. Therefore, the interpretation of Mössbauer spectra is the key item to solve the α″-Fe16N2problem.