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 | Qian X
|
| 刊名 | applied physics letters
 |
| 出版日期 | 2009 |
| 卷号 | 94期号:19页码:art. no. 192107 |
| 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 |
| 通讯作者 | ji y chinese acad sci inst semicond sklsm beijing 100083 peoples r china. e-mail address: hhluo@semi.ac.cn ; jiyang@red.semi.ac.cn |
| 中文摘要 | 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. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 资助信息 | nsfc 10425419 national basic research program of china 2007cb924900 2009cb929301 chinese academy of sciences we thank m. w. wu and x. z. ruan for helpful discussions. this work was supported by the nsfc under grants no. 10425419, national basic research program of china (grant nos. 2007cb924900 and 2009cb929301), and the knowledge innovation project of chinese academy of sciences. |
| 语种 | 英语 |
| 公开日期 | 2010-03-08 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/7195]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Qian X. 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):art. no. 192107. |
| APA | Qian X.(2009).Effect of Ka-band microwave on the spin dynamics of electrons in a GaAs/Al0.35Ga0.65As heterostructure.applied physics letters,94(19),art. no. 192107. |
| MLA | Qian X."Effect of Ka-band microwave on the spin dynamics of electrons in a GaAs/Al0.35Ga0.65As heterostructure".applied physics letters 94.19(2009):art. no. 192107. |
入库方式： OAI收割
来源：半导体研究所
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