| 磁调制半导体纳米体系中电子自旋输运 |
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| 引用本文： | 卢卯旺.磁调制半导体纳米体系中电子自旋输运[J].湖南科技学院学报,2006,27(11):156-159. |
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| 作者姓名： | 卢卯旺 |
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| 作者单位： | 湖南科技学院,电子工程与物理系,湖南,永州,425100 |
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| 摘 要： | 研究了一般的磁调制半导体纳米体系中电子自旋输运性质，其可以通过在半导体异质结表面沉积具有任意磁化方向的铁磁条带形成。通过对真实InAs材料系统的计算，发现这种系统具有很强的电子自旋极化效应，其自旋极化度在共振时超过80％。因此，我们的系统可以用于电子自旋过滤器。
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| 关 键 词： | 自旋电子学 磁调制纳米体系 自旋极化 自旋过滤 |
| 文章编号： | 1673-2219（2006）11-0156-04 |
| 收稿时间： | 2006-06-21 |
| 修稿时间： | 2006年6月21日 |
Electron-spin Transport in Magnetically Modulated Semiconductor Nanosystems |
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| LU Mao-Wang.Electron-spin Transport in Magnetically Modulated Semiconductor Nanosystems[J].Journal of Hunan University of Science and Engineering,2006,27(11):156-159. |
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| Authors: | LU Mao-Wang |
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| Abstract: | Spin-dependent transport properties were investigated in generic magnetically modulated semiconductor nanosystems, which can be realized by depositing a ferromagnetic stripe with arbitrary magnetization on the top of a semiconductor heterostructure. By numerical calculations for the realistic InAs material, it is show that this kind of systems possesses a considerable spin polarization effect, and its degree can reach 80% at resonance. Thus, we propose an alternative scheme to realize spin injection into semiconductor, and our considered systems can be used as spin filters. |
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| Keywords: | Spintronics Magnetically modulated nanosystems Spin polarization Spin filtering |
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