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通过穆斯堡尔谱等手段研究赝三元金属间化物（Ｓｍ１－ｘＹｘ）２Ｆｅ１７Ｎｙ中的Ｎ原子占位机闭，并通过点电荷模型对Ｎ原子的占泣机制进行理论解释。由试验结果和点电荷模型结果得出以下结论：１）Ｎ原子占据９ｅ（６ｈ）和１８ｇ（３ｂ）两个间隙品位；２）Ｎ原子的双重占位与自旋磁结构密切相关，是单轴各向异性产生的主要原因。
By means of Mossbauer spectroscopy and other means to study the pseudo-ternary intermetallics (Sm1-xYx) 2Fe17Ny N atom occupancy machine closed, and through point charge model of N atom of the mechanism of the pernicious to explain theoretically. From the experimental results and point charge model results, the following conclusions can be drawn: 1) N atoms occupy two clearance levels of 9e (6h) and 18g (3b); 2) Double occupancy of N atoms is closely related to the spin magnetic structure, The main reason for the axial anisotropy.