| MFT对R—T化合物R2Fe17Mx（R=Pr,Nd：Mx=0,N3或D4.8）的磁性分析 |
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| 引用本文： | 张向牧,亢海伟.MFT对R—T化合物R2Fe17Mx（R=Pr,Nd：Mx=0,N3或D4.8）的磁性分析[J].河北省科学院学报,1996,13(4):10-15. |
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| 作者姓名： | 张向牧 亢海伟 |
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| 作者单位： | 沧州师范专科学校物理系 |
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| 摘 要： | 】用二亚点阵ＭＦＴ分析Ｒ２Ｆｅ１７Ｍｘ的饱和磁化与温度的关系。得到了分子场系数ｎＲＲ、ｎＲＦ和ｎＦＦ，计算出了居里温度，给出了交换场ＨＲ（Ｔ）、ＨＦｅ（Ｔ）与温度的关系曲线。结果表明，在Ｒ２Ｆｅ１７中渗入Ｎ或Ｄ后，Ｍ２Ｆｅ（０）和ｎＦＦ明显增大，交换场也相应增大，居里温度主要取决于Ｍ２Ｆｅ（０）和ｎＦＦ。
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| 关 键 词： | MFT，R2Fe17Mx，饱和磁化，居里温度，交换场，参量F |
MFT ANALYSIS OF MAGNETIC PROPERTIS OF R 2Fe 17 Mx (R=Pr,Nd;Mx=0,N 3 or D 4.8 )COMPOUNDS |
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| Zhang,Xiangmu,Kang,Haiwei,Wang,Hongxin,Huang,Ruiwang.MFT ANALYSIS OF MAGNETIC PROPERTIS OF R 2Fe 17 Mx (R=Pr,Nd;Mx=0,N 3 or D 4.8 )COMPOUNDS[J].Journal of The Hebei Academy of Sciences,1996,13(4):10-15. |
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| Authors: | Zhang Xiangmu Kang Haiwei Wang Hongxin Huang Ruiwang |
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| Institution: | Zhang Xiangmu Kang Haiwei Wang Hongxin Huang Ruiwang |
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| Abstract: | The temperature dependence of the saturation magnetization of R 2Fe 17 Mx compounds have been analysed by using the two sublattice molecular field theory.The molecular field coefficients n RR ,n RF and n FF are obtained.Curie temperature of the compounds are calculated.The curves of H R(T) and H Fe (T) are plotted.The results of the analysis showed that increase of M 2 Fe (0) and n FF after N(or D)atoms permeated into the compounds,H R(T) and H Fe (T)marked increase for each compound in a large temperature range.The n FF M 2 Fe (0)/T C is approximately a constant. |
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| Keywords: | Molecular field theory(MFT) R 2Fe 17 Mx Saturation magnetization Curie temperature |
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