| 金属间化合物RFe8Mn4的结构和磁性 |
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| 引用本文： | 盛晓波,林萍华. 金属间化合物RFe8Mn4的结构和磁性[J]. 东南大学学报(自然科学版), 2000, 30(5): 70-72 |
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| 作者姓名： | 盛晓波 林萍华 |
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| 作者单位： | 东南大学机械工程系,南京210096 |
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| 基金项目： | 江苏省应用科学基金资助项目! (BJ970 30 ) |
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| 摘 要： | 通过X射线衍射和磁测量研究了金属间化合物RFe8Mn4（R＝Y,Gd,Ho和Er)的结构和磁性。所有这些化合物都具有单相ThMn12型结构,其晶格常数a,c和单胞体积V随原子序数增加而减小。HoFe8Mn4和ErFe8Mn4化合物的热磁曲线上出现了补偿点,补偿点温度分别为95K和70K左右。本文还给出了这些化合物的居里温度和饱和磁化强度。
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| 关 键 词： | 磁性材料 金属间化合物 ThMn12结构 RFe8Mn4 磁性 |
Structure and Magnetic Properties of RFe_8Mn_4 Compounds with R=Y, Gd, Ho and Er |
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| Sheng Xiaobo Lin Pinghua. Structure and Magnetic Properties of RFe_8Mn_4 Compounds with R=Y, Gd, Ho and Er[J]. Journal of Southeast University(Natural Science Edition), 2000, 30(5): 70-72 |
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| Authors: | Sheng Xiaobo Lin Pinghua |
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| Abstract: | The structure and magnetic properties of RFe 8Mn 4 compounds (R=Y, Gd, Ho and Er) were investigated by means of X ray diffraction and magnetic measurements. All of the studied RFe 8Mn 4 compounds crystallize in the ThMn 12 structure. Their lattice constants and unit cell volume decrease monotonously with the increase of the atomic number for R=Gd, Ho and Er. The compensation points appear for the HoFe 8Mn 4and ErFe 8Mn 4 compounds and the compensation temperature is about 95?K and 70?K, respectively. The Curie temperature and the saturation magnetization of RFe 8Mn 4 compounds were given in this paper. |
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| Keywords: | magnetic materials intermetallic compounds ThMn 12 structure |
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