Dynamic nuclear polarization of a single InAs/GaAs quantum dot:: Positive versus negative trions

被引：0

作者：

Eble, B. ^{[1
]}

Krebs, O. ^{[1
]}

Lemaitre, A. ^{[1
]}

Kowalik, K. ^{[1
]}

Kudelski, A. ^{[1
]}

Urbaszek, B. ^{[1
]}

Amand, T. ^{[1
]}

Marie, X. ^{[1
]}

Voisin, P. ^{[1
]}

机构：

[1] CNRS, Lab Photon & Nanostruct, Route Nozay, F-91460 Marcoussis, France

来源：

PHYSICS OF SEMICONDUCTORS, PTS A AND B | 2007年 / 893卷

关键词：

semiconductor quantum dot; nuclear polarization; charged exciton;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on electron spin manipulation in a single charge-tunable self-assembled InAs/GaAs quantum dot. The hyperfine interaction between the optically oriented electron and nuclear spins leads to the polarization of the quantum dot nuclei. The sign of the resulting Overhauser-shift depends on the trion state X+- or X- which demonstrates the transfer of spin polarization to the nuclei from the unpaired electron either in the initial state for X+, or in the final state for X-.

引用

页码：1345 / +

页数：2

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