Electron spin relaxation in a single InAs quantum dot measured by tunable nuclear spins
文献类型：期刊论文
| ; | |
| 作者 | Dou XM; Sun BQ; Jiang DS; Ni HQ; Niu ZC; Dou, XM (reprint author), Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China, bqsun@semi.ac.cn |
| 刊名 | physical review b
 ; PHYSICAL REVIEW B
|
| 出版日期 | 2011 ; 2011 |
| 卷号 | 84期号:3页码:33302 |
| 关键词 | DYNAMICS EXCITON Dynamics Exciton |
| ISSN号 | 1098-0121 ; 1098-0121 |
| 通讯作者 | dou, xm (reprint author), chinese acad sci, inst semicond, sklsm, pob 912, beijing 100083, peoples r china, bqsun@semi.ac.cn |
| 英文摘要 | The electron-spin dynamics of positively charged excitons in a single InAs quantum dot (QD) were measured by time-resolved photoluminescence spectroscopy. Using alternating sigma(+)/sigma(-) pulse sequences to excite the QD, the lattice nuclear spins remained randomly oriented. This method enables us to check the theory of electron-spin relaxation in the randomly distributed frozen fluctuation of the nuclear field. The experimental results are in qualitative agreement with theoretical prediction, showing that the electron-spin polarization decreases to a minimum value at first, and then increases again up to a steady value of about 1/3 of its initial value. |
| 学科主题 | 半导体物理 ; 半导体物理 |
| 收录类别 | SCI |
| 资助信息 | national basic research program of china; nspc[2007cb924904, 90921015] |
| 语种 | 英语 ; 英语 |
| 资助机构 | National Basic Research Program of China; NSPC[2007CB924904, 90921015] |
| 公开日期 | 2012-01-06 ; 2012-01-06 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/22677]  |
| 专题 | 半导体研究所_半导体超晶格国家重点实验室 |
| 通讯作者 | Dou, XM (reprint author), Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China, bqsun@semi.ac.cn |
| 推荐引用方式 GB/T 7714 | Dou XM,Sun BQ,Jiang DS,et al. Electron spin relaxation in a single InAs quantum dot measured by tunable nuclear spins, Electron spin relaxation in a single InAs quantum dot measured by tunable nuclear spins[J]. physical review b, PHYSICAL REVIEW B,2011, 2011,84, 84(3):33302, 33302. |
| APA | Dou XM,Sun BQ,Jiang DS,Ni HQ,Niu ZC,&Dou, XM .(2011).Electron spin relaxation in a single InAs quantum dot measured by tunable nuclear spins.physical review b,84(3),33302. |
| MLA | Dou XM,et al."Electron spin relaxation in a single InAs quantum dot measured by tunable nuclear spins".physical review b 84.3(2011):33302. |
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来源：半导体研究所
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