| The anisotropy of Gd－Fe exchange interaction for Gd2Fe17 and Gd2Fe17H3 |
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| 引用本文： | 闫羽,许淑伟,金汉民,杜晓波,苏峰.The anisotropy of Gd－Fe exchange interaction for Gd2Fe17 and Gd2Fe17H3[J].中国物理 B,2004,13(11):1965-1968. |
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| 作者姓名： | 闫羽 许淑伟 金汉民 杜晓波 苏峰 |
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| 作者单位： | Department of Physics, Jilin University, Changchun 130023, China; State Key Laboratory for Superhard Materials, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China;Department of Physics, Jilin University, Changchun 130023, China |
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| 基金项目： | Project supported by Specialized Research Fund for the Doctoral Programme of Higher Education of China and the National Natural Science Foundation of China (Grant No 10304006). |
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| 摘 要： | The magnetization curves along the crystal axes for Gd_2Fe_{17} and Gd_2Fe_{17}H_3 were analysed based on the single-ion model. If the Gd－Fe exchange interaction has been taken as isotropic as usual, the fitted values of magneto-crystalline anisotropy of the Fe sublattices in Gd_2Fe_{17} and Gd_2Fe_{17}H_3 would become unreasonably different from those of the corresponding Y or Lu compounds. It was shown that the large difference is caused by the neglect of the anisotropy of the Gd－Fe exchange interaction.
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| 关 键 词： | 磁化曲线 磁异性 土壤化合物 关联交换 结晶状态 |
| 收稿时间： | 4/7/2004 12:00:00 AM |
The anisotropy of Gd－Fe exchange interaction for Gd2Fe17 and Gd2Fe17H3 |
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| Yan Yu,Xu Shu-Wei,Jin Han-Min,Du Xiao-Bo and Su Feng.The anisotropy of Gd－Fe exchange interaction for Gd2Fe17 and Gd2Fe17H3[J].Chinese Physics B,2004,13(11):1965-1968. |
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| Authors: | Yan Yu Xu Shu-Wei Jin Han-Min Du Xiao-Bo and Su Feng |
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| Institution: | Department of Physics, Jilin University, Changchun 130023, China; Department of Physics, Jilin University, Changchun 130023, China; State Key Laboratory for Superhard Materials, Jilin University, Changchun 130023, China |
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| Abstract: | The magnetization curves along the crystal axes for Gd_2Fe_{17} and Gd_2Fe_{17}H_3 were analysed based on the single-ion model. If the Gd－Fe exchange interaction has been taken as isotropic as usual, the fitted values of magneto-crystalline anisotropy of the Fe sublattices in Gd_2Fe_{17} and Gd_2Fe_{17}H_3 would become unreasonably different from those of the corresponding Y or Lu compounds. It was shown that the large difference is caused by the neglect of the anisotropy of the Gd－Fe exchange interaction. |
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| Keywords: | magnetization curves magnetic anisotropy rare-earth compounds |
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