Experimental measurement of microwave-induced electron spin-flip time
文献类型:期刊论文
作者 | Tan PH![]() |
刊名 | applied physics letters
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出版日期 | 2001 |
卷号 | 78期号:2页码:204-206 |
关键词 | DETECTED MAGNETIC-RESONANCE QUANTUM-WELLS EXCESS ELECTRONS EXCITONS GAS |
ISSN号 | 0003-6951 |
通讯作者 | hu cy,chinese acad sci,inst semicond,natl lab superlattices & microstruct,beijing 100083,peoples r china. |
中文摘要 | the electron spin resonance (esr) is optically detected by monitoring the microwave-induced changes in the circular polarization of the neutral exciton (x) and the negatively charged exciton (x-) emission in cdte quantum wells with low density of excess electrons. we find that the circular polarization of the x and x- emission is a mapping of the spin polarization of excess electrons. by analyzing the esr-induced decrease in the circular polarization degree of the x emission, we deduce the microwave-induced electron spin-flip time >0.1 mus, which is much longer than the recombination time of x and x-. this demonstrates that the optically detected esr in type i quantum wells with low density of excess electrons does not obey the prerequisite for the conventional optically detected magnetic resonance. (c) 2001 american institute of physics. |
学科主题 | 半导体物理 |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2010-08-12 |
源URL | [http://ir.semi.ac.cn/handle/172111/12330] ![]() |
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 | Tan PH. Experimental measurement of microwave-induced electron spin-flip time[J]. applied physics letters,2001,78(2):204-206. |
APA | Tan PH.(2001).Experimental measurement of microwave-induced electron spin-flip time.applied physics letters,78(2),204-206. |
MLA | Tan PH."Experimental measurement of microwave-induced electron spin-flip time".applied physics letters 78.2(2001):204-206. |
入库方式: OAI收割
来源:半导体研究所
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