SEMI OpenIR  > 半导体超晶格国家重点实验室
Electron spin relaxation in a single InAs quantum dot measured by tunable nuclear spins
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
2011
Source PublicationPHYSICAL REVIEW B
ISSN1098-0121
Volume84Issue:3Pages:33302
AbstractThe 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.
metadata_83半导体超晶格国家重点实验室
KeywordDynamics Exciton
Subject Area半导体物理
Funding OrganizationNational Basic Research Program of China; NSPC[2007CB924904, 90921015]
Indexed BySCI
Language英语
Date Available2012-01-06
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/22677
Collection半导体超晶格国家重点实验室
Corresponding AuthorDou, XM (reprint author), Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China, bqsun@semi.ac.cn
Recommended Citation
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[J]. PHYSICAL REVIEW B,2011,84(3):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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