| Electron transport across a quantum wire embedding a saw-tooth superlattice |
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| 引用本文： | 陈元平,颜晓红,卢卯旺,邓宇翔.Electron transport across a quantum wire embedding a saw-tooth superlattice[J].中国物理 B,2004,13(9):1537-1543. |
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| 作者姓名： | 陈元平 颜晓红 卢卯旺 邓宇翔 |
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| 作者单位： | Institute of Modern Physics and Department of Physics, Xiangtan University, Xiangtan 411105, China |
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| 基金项目： | Project supported by National Major Project of China (Grant No 1999-0645-4500), and Scientific Research Fund of Hunan Provincial Education Department, China (Grant No 02C572). |
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| 摘 要： | By developing the recursive Green function method, the transport properties through a quantum wire embedding a finite-length saw-tooth superlattice are studied in the presence of magnetic field. The effects of magnetic modulation and the geometric structures of the superlattice on transmission coefficient are discussed. It is shown that resonant peak splitting of this kind of structure is different from that of ‘magnetic' and ‘electric' superlattices in two-dimensional electron gas. The transmission spectrum can be tailored to match requirements through adjusting the size of saw-tooth quantum dot and field strength.
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| 关 键 词： | 锯齿形超晶格 电子传输 有限长度超晶格 格林函数 量子导线 量子点 量子电子学 |
| 收稿时间： | 2003-11-17 |
Electron transport across a quantum wire embedding a saw-tooth superlattice |
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| Chen Yuan-Ping,Yan Xiao-Hong,Lu Mao-Wang and Deng Yu-Xiang.Electron transport across a quantum wire embedding a saw-tooth superlattice[J].Chinese Physics B,2004,13(9):1537-1543. |
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| Authors: | Chen Yuan-Ping Yan Xiao-Hong Lu Mao-Wang and Deng Yu-Xiang |
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| Institution: | Institute of Modern Physics and Department of Physics, Xiangtan University, Xiangtan 411105, China |
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| Abstract: | By developing the recursive Green function method, the transport properties through a quantum wire embedding a finite-length saw-tooth superlattice are studied in the presence of magnetic field. The effects of magnetic modulation and the geometric structures of the superlattice on transmission coefficient are discussed. It is shown that resonant peak splitting of this kind of structure is different from that of ‘magnetic' and ‘electric' superlattices in two-dimensional electron gas. The transmission spectrum can be tailored to match requirements through adjusting the size of saw-tooth quantum dot and field strength. |
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| Keywords: | finite-length superlattice saw-tooth quantum dot |
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