Effect of ka-band microwave on the spin dynamics of electrons in a gaas/al0.35ga0.65as heterostructure
文献类型：期刊论文
| 作者 | Luo, Haihui1; Qian, Xuan1; Gu, Xiaofang1; Ji, Yang1; Umansky, Vladimir2 |
| 刊名 | Applied physics letters
 |
| 出版日期 | 2009-05-11 |
| 卷号 | 94期号:19页码:3 |
| 关键词 | Aluminium compounds Carrier lifetime Gallium arsenide High-frequency effects Iii-v semiconductors Optical kerr effect Semiconductor heterojunctions Spin dynamics Two-dimensional electron gas |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/1.3138154 |
| 通讯作者 | Ji, yang(jiyang@red.semi.ac.cn) |
| 英文摘要 | We report experimental results of the effect of ka-band microwave on the spin dynamics of electrons in a two-dimensional electron system (2des) in a gaas/al0.35ga0.65as heterostructure via time-resolved kerr rotation measurements. while the microwave reduces the transverse spin lifetime of electrons in the bulk gaas, it significantly increases that in the 2des, from 745 to 1213 ps, when its frequency is close to the zeeman splitting of the electrons in the magnetic field. such a microwave-enhanced spin lifetime is ascribed to the microwave-induced electron scattering which leads to a "motional narrowing" of spins via d'yakonov-perel' mechanism. |
| WOS关键词 | QUANTUM-WELLS ; SPINTRONICS ; RELAXATION |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000266263400034 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427554 |
| 专题 | 半导体研究所 |
| 通讯作者 | Ji, Yang |
| 作者单位 | 1.Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China 2.Weizmann Inst Sci, Braun Ctr Submicron Res, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel |
| 推荐引用方式 GB/T 7714 | Luo, Haihui,Qian, Xuan,Gu, Xiaofang,et al. Effect of ka-band microwave on the spin dynamics of electrons in a gaas/al0.35ga0.65as heterostructure[J]. Applied physics letters,2009,94(19):3. |
| APA | Luo, Haihui,Qian, Xuan,Gu, Xiaofang,Ji, Yang,&Umansky, Vladimir.(2009).Effect of ka-band microwave on the spin dynamics of electrons in a gaas/al0.35ga0.65as heterostructure.Applied physics letters,94(19),3. |
| MLA | Luo, Haihui,et al."Effect of ka-band microwave on the spin dynamics of electrons in a gaas/al0.35ga0.65as heterostructure".Applied physics letters 94.19(2009):3. |
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来源：半导体研究所
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