| Dy2（Fe1—xSix）17系列化合物内禀磁性及穆斯堡尔效应研究 |
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| 引用本文： | 吴静 张端明. Dy2（Fe1—xSix）17系列化合物内禀磁性及穆斯堡尔效应研究[J]. 中国稀土学报, 1997, 15(1): 22-26 |
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| 作者姓名： | 吴静 张端明 |
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| 作者单位： | [1]华中师范大学物理系 [2]华中理工大学物理系 |
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| 摘 要： | 详细研究了Ｄ２（Ｆ１ｘ－Ｓｉｘ）１７系列化合物的晶格结构和内禀磁性。Ｘ射线衍射分析表明，Ｄｙ２（Ｆｅ１－ｘＳｉｘ）１７系列化合物呈现Ｔｈ２Ｎｉ１７结构牙或Ｔｈ２Ｚｎ１７结构相，居里温度ＴＣ随Ｘ的增大而增大，饱和磁化强度σｓ随ｘ的增加而减小。
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| 关 键 词： | 镝 穆斯堡尔效应 平均铁磁矩 稀土族元素 |
Magenetic Properties and Mssbauer Study of The Dy 2(Fe 1- x Si x ) 17 Compounds |
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| Wu Jing,Qi Shouren,Huang Xintang,Gan Zhongwei,Yu Nanshan,Ding Xiaoxia. Magenetic Properties and Mssbauer Study of The Dy 2(Fe 1- x Si x ) 17 Compounds[J]. Journal of the Chinese Society of Rare Earths, 1997, 15(1): 22-26 |
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| Authors: | Wu Jing Qi Shouren Huang Xintang Gan Zhongwei Yu Nanshan Ding Xiaoxia |
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| Abstract: | The crystal and magenetic properties of Dy 2(Fe 1- x Si x ) 17 with x equal to 0 0, 0 04, 0 08, 0 10, 0 12, 0 16, 0 20 have been investigated with X ray diffraction and 57 Fe Mssbauer effects methods. They crystallize in the hexagonal Th 2Ni 17 type structure or Th 2Zn 17 type structure. With the increase of Si content, their curie temperatures increase, while their saturation magnetizations decrease. From the Mssbauer spectra data., it is found that the hyperfine field in all Fe crystal sites is weakened with Si content increasing and the 4f dumbell site decrease fastestly. From the experimental results, it can be seen that the effects of substituing Si for Fe is active. |
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| Keywords: | Rare earth R 2Fe 17 compounds Substitutional atom Mssbauer effects Hyperfine field Average Fe magnetic moment |
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