Short range scattering mechanism of type-ii gasb/gaas quantum dots on the transport properties of two-dimensional electron gas
文献类型：期刊论文
| 作者 | Li, Guodong1,2; Yin, Hong1; Zhu, Qinsheng3; Sakaki, Hiroyuki4; Jiang, Chao1 |
| 刊名 | Journal of applied physics
 |
| 出版日期 | 2010-08-15 |
| 卷号 | 108期号:4页码:5 |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.3467520 |
| 通讯作者 | Li, guodong() |
| 英文摘要 | We have studied the scattering process of algaas/gaas two-dimensional electron gas with the nearby embedded gasb/gaas type-ii quantum dots (qds) at low temperature. quantum hall effect and shubnikov-de haas oscillation were performed to measure the electron density n(2d), the transport lifetime tau(t) and the quantum lifetime tau(q) under various biased gate voltage. by comparing measured results of qds sample with that of reference sample without embedded qds, mobilities (transport mobility mu(t) and quantum mobility mu(q)) dominated by gasb qds scattering were extracted as functions of n(2d). it was found that the ratios of tau(t) to tau(q) were varying within the range of 1-4, implying the scattering mechanism belonging to the sort of short-range interaction. in the framework of born approximation, a scattering model considering rectangular-shaped potential with constant barrier height was successfully applied to explain the transport experimental data. in addition, an oscillating ratio of tau(t)/tau(q) with the increasing n(2d) was predicted in the model. (c) 2010 american institute of physics. [doi:10.1063/1.3467520] |
| WOS关键词 | PHOTOLUMINESCENCE ; HETEROJUNCTIONS ; SPECTROSCOPY ; SYSTEMS ; PHYSICS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000281857100062 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428071 |
| 专题 | 半导体研究所 |
| 通讯作者 | Li, Guodong |
| 作者单位 | 1.Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.CAS, Inst Semicond, Beijing 100083, Peoples R China 4.Toyota Technol Inst, Tempaku Ku, Nagoya, Aichi 468, Japan |
| 推荐引用方式 GB/T 7714 | Li, Guodong,Yin, Hong,Zhu, Qinsheng,et al. Short range scattering mechanism of type-ii gasb/gaas quantum dots on the transport properties of two-dimensional electron gas[J]. Journal of applied physics,2010,108(4):5. |
| APA | Li, Guodong,Yin, Hong,Zhu, Qinsheng,Sakaki, Hiroyuki,&Jiang, Chao.(2010).Short range scattering mechanism of type-ii gasb/gaas quantum dots on the transport properties of two-dimensional electron gas.Journal of applied physics,108(4),5. |
| MLA | Li, Guodong,et al."Short range scattering mechanism of type-ii gasb/gaas quantum dots on the transport properties of two-dimensional electron gas".Journal of applied physics 108.4(2010):5. |
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来源：半导体研究所
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