Electron transport across one-dimensional modulated superlattices in a quantum waveguide in magnetic fields
文献类型：期刊论文
| 作者 | Gu, BY ; Zhang, Y ; Wang, XH |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2000 |
| 卷号 | 88期号:1页码:300 |
| 关键词 | SCATTERING-MATRIX METHOD WAVE-GUIDES BALLISTIC TRANSPORT CONDUCTANCE QUANTIZATION WIRES STATES TRANSMISSION CHANNEL MAGNETOTRANSPORT BACKSCATTERING |
| ISSN号 | 0021-8979 |
| 通讯作者 | Gu, BY: Abdus Salam Int Ctr Theoret Phys, POB 586, I-34100 Trieste, Italy. |
| 中文摘要 | Electron transport in a quantum waveguide containing a finite length superlattice (SL) with periodically modulated potentials or Gaussian envelope modulation in magnetic fields is investigated with use of the scattering matrix method. When the modulated potential of the SL takes a Gaussian function, we found that the resonant peaks in conductance at zero field are prominently smoothed out and the conductance spectrum exhibits a monotonically increasing line with a finite rise at the beginning. The corresponding one-dimensional structure presents flat minibands and minigaps. When electron energy is aligned with the miniband, electrons are allowed to pass through the SL to be nearly unscattered. When applying magnetic fields, the conductance plateaus are observed again. From the analyses of the individual modal transmission probabilities, the conductance spectra can be understood well. It is expected that implanting a finite length SL with different modulation potentials may provide a way to tailor conductance spectrum to match the practical demands in devices. (C) 2000 American Institute of Physics. [S0021-8979(00)09311-7]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37119]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gu, BY,Zhang, Y,Wang, XH. Electron transport across one-dimensional modulated superlattices in a quantum waveguide in magnetic fields[J]. JOURNAL OF APPLIED PHYSICS,2000,88(1):300. |
| APA | Gu, BY,Zhang, Y,&Wang, XH.(2000).Electron transport across one-dimensional modulated superlattices in a quantum waveguide in magnetic fields.JOURNAL OF APPLIED PHYSICS,88(1),300. |
| MLA | Gu, BY,et al."Electron transport across one-dimensional modulated superlattices in a quantum waveguide in magnetic fields".JOURNAL OF APPLIED PHYSICS 88.1(2000):300. |
入库方式： OAI收割
来源：物理研究所
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