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| In-Situ Alignment of MnBi Crystals Induced by High Magnetic Field above Curie Temperature | |
| 引用本文： | 刘永生 张金仓 任忠鸣 曹世勋. In-Situ Alignment of MnBi Crystals Induced by High Magnetic Field above Curie Temperature[J]. 中国物理快报, 2007, 24(1): 210-213 |
| 作者姓名： | 刘永生 张金仓 任忠鸣 曹世勋 |
| 作者单位： | [1]Department of Mathematics and Physics, Shanghai University of Electric Power, Shanghai 200090 [2]Department of Physics, Shanghai University, Shanghai 200444 [3]Department of Materials Science and Engineering, Shanghai University, Shanghai 200444 |
| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 50234020 and 10274049, tile Key Project of Science and Technology Committee of Shanghai under Grant No 06JC14033, and the Education Committee of Shanghai under Grant No 06LZ01I. The authors would like to thank Dr Wang Hui and Mr Zhang Xiao-Yong for useful discussions and their help in the measurement. |
| 摘 要： | Above Curie temperature, MnBi crystals are aligned in situ along the c-axis in a Bi matrix by a high fabrication magnetic field H f of 10 T. Magnetic testing shows a pronounced anisotropy in magnetization in directions normal and parallel to the fabrication field, resulting from the alignment. The successful alignment m v result from the fact that the easy magnetization direction is along the c-axis of MnBi and the high fabrication field of 10 T is large enough to rotate the ）MnBi crystal to this direction even though the temperature is above the Curie temperature. |
| 关 键 词： | MnBi 晶体 磁铁 温度 |
| 修稿时间： | 2006-10-10 |
In-Situ Alignment of MnBi Crystals Induced by High Magnetic Field above Curie Temperature |
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| LIU Yong-Sheng,ZHANG Jin-Cang,REN Zhong-Ming,CAO Shi-Xun. In-Situ Alignment of MnBi Crystals Induced by High Magnetic Field above Curie Temperature[J]. Chinese Physics Letters, 2007, 24(1): 210-213 | |
| Authors: | LIU Yong-Sheng ZHANG Jin-Cang REN Zhong-Ming CAO Shi-Xun |
| Affiliation: | Department of Mathematics and Physics, Shanghai University of Electric Power, Shanghai 200090Department of Physics, Shanghai University, Shanghai 200444Department of Materials Science and Engineering, Shanghai University, Shanghai 200444 |
| Abstract: | Above Curie temperature, MnBi crystals are aligned in situ along the c-axis in a Bi matrix by a high fabrication magnetic field Hf of 10T. Magnetic testing shows a pronounced anisotropy in magnetization in directions normal and parallel to the fabrication field, resulting from the alignment. The successful alignment may result from the fact that the easy magnetization direction is along the c-axis of MnBi and the high fabrication field of 10T is large enough to rotate the MnBi crystal to this direction even though the temperature is above the Curie temperature. |
| Keywords: | 75.30.-m 75.30.Kz 75.25.+z |
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