| 金属间化物（Sm_（1－x）Y_x）_2Fe_（17）N_y中N原子占位的点电 |
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| 引用本文： | 罗广圣,贺伦燕,曾贻伟,杨伏明. 金属间化物（Sm_（1－x）Y_x）_2Fe_（17）N_y中N原子占位的点电[J]. 南昌大学学报(工科版), 1995, 0(2) |
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| 作者姓名： | 罗广圣 贺伦燕 曾贻伟 杨伏明 |
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| 作者单位： | 南昌大学，北京师范大学，中国科学院物理研究所 |
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| 摘 要： | 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。
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| 关 键 词： | 金属间化物（Sm_（1－x）Y_x）_2Fe_（17）N_y，N原子占位，点电荷模型 |
The Point-Chargge Model for N Atoms Occupation of Intermetallic Compounds(Sm1-xYx)2Fe17Ny |
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| Luo Guangsheng,He Lunyan,Zeng Yiwei. The Point-Chargge Model for N Atoms Occupation of Intermetallic Compounds(Sm1-xYx)2Fe17Ny[J]. Journal of Nanchang University(Engineering & Technology Edition), 1995, 0(2) |
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| Authors: | Luo Guangsheng He Lunyan Zeng Yiwei |
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| Abstract: | ossbauer spectroscopy and the epoint-charge model were used to study themechanism of N atoms occupation in(Sm1-xYx)2Fe17Ny alloy.The experimental results and thepoint-charge modcl results confirmed the following facts:1)The N atoms occupied not only 9e(6h)sites but also 18g(3b)sites;2)The double occupation of N atoms was closely consistentwith the spin magnctic structure,which was the main reason of unial-axis anisotropy. |
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| Keywords: | Intermetallic compounds(Sm1-xYx)2Fe17Ny N atoms occupation Pointcharge model |
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