| 反平行磁电垒结构中二维电子气体的输运性质 |
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| 引用本文： | 程正则.反平行磁电垒结构中二维电子气体的输运性质[J].电子学报,2009,37(12):2762-2765. |
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| 作者姓名： | 程正则 |
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| 作者单位： | 咸宁学院电子与信息工程学院,湖北咸宁,437100 |
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| 基金项目： | 国家自然科学基金，学院博士研究生科研启动项目 |
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| 摘 要： | 本文对反平行磁电垒结构中二维电子气体的输运性质进行了详细的研究.利用传递矩阵的方法计算了电子气体隧穿磁电垒结构的传输概率和电导率,讨论了电势垒高度的变化对传输概率和电导率的影响.结果表明,该系统中不存在自旋过滤和自旋极化现象,电子气体可实现理想的共振隧穿,波矢过滤等.
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| 关 键 词： | 磁电垒 共振隧穿 波矢过滤 传输概率 电导率 |
| 收稿时间： | 2008-05-20 |
Transport Properties of Two Dimensional Electron Gases in Antiparallel Magnetic-Electric Barrier |
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| CHENG Zheng-ze.Transport Properties of Two Dimensional Electron Gases in Antiparallel Magnetic-Electric Barrier[J].Acta Electronica Sinica,2009,37(12):2762-2765. |
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| Authors: | CHENG Zheng-ze |
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| Affiliation: | CHENG Zheng-ze(The School of Electronic and Information Engineering,Xianning University,Xianning,Hubei 437005,China) |
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| Abstract: | This paper describes transport properties of two dimensional electron gases in antiparallel magnetic-electric barrier structure.By means of transfer matrix method,we obtain the explicit expressions of electron transmission probability and conductance for a magnetic-electric barrier structure and discuss the influence of different values of the electric potential barrier height on them.The results indicate that this system does not possess any spin filtering and spin polarization and electron gases can reali... |
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| Keywords: | magnefic-eleclric barrier resonant tunneling wave-vector filtering transmission conductance |
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