Coherent and phonon-assisted tunnelling in asymmetric double barrier resonant tunnelling structures
文献类型：期刊论文
| 作者 | Shi, JJ ; Sanders, BC ; Pan, SH |
| 刊名 | AUSTRALIAN JOURNAL OF PHYSICS
 |
| 出版日期 | 2000 |
| 卷号 | 53期号:1页码:35 |
| 关键词 | QUANTUM-WELL STRUCTURES TUNNELING DIODES MAGNETIC-FIELD SCATTERING HETEROSTRUCTURES EMISSION MODES |
| ISSN号 | 0004-9506 |
| 通讯作者 | Shi, JJ: Macquarie Univ, Dept Phys, N Ryde, NSW 2109, Australia. |
| 中文摘要 | We present a theory for calculating the phonon-assisted tunnelling current in asymmetric double barrier resonant tunnelling structures (DBRTS), in which all of the phonon modes including the interface modes and the confined bulk-like LO phonons and the conduction band nonparabolicity are considered. An important physical picture about coherent and phonon-assisted tunnelling is given. The coherent tunnelling current can be directly determined by both the width of the resonant level and the peak value of the transmission coefficient at the resonant level. The phonon-assisted tunnelling current mainly comes from electron interaction with higher frequency interface phonons (especially the interface phonons localised at either interface of the left barrier). Phonon-assisted tunnelling makes a significant contribution to the valley current. The subband nonparabolicity strongly influences on electron-phonon scattering and current-to-voltage characteristics. A specially designed asymmetric DBRTS may have an improved performance over the symmetric DBRTS. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34815]  |
| 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 | Shi, JJ,Sanders, BC,Pan, SH. Coherent and phonon-assisted tunnelling in asymmetric double barrier resonant tunnelling structures[J]. AUSTRALIAN JOURNAL OF PHYSICS,2000,53(1):35. |
| APA | Shi, JJ,Sanders, BC,&Pan, SH.(2000).Coherent and phonon-assisted tunnelling in asymmetric double barrier resonant tunnelling structures.AUSTRALIAN JOURNAL OF PHYSICS,53(1),35. |
| MLA | Shi, JJ,et al."Coherent and phonon-assisted tunnelling in asymmetric double barrier resonant tunnelling structures".AUSTRALIAN JOURNAL OF PHYSICS 53.1(2000):35. |
入库方式： OAI收割
来源：物理研究所
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