Micro-photoluminescence study of electron-spin injection in self-assembled semiconductor quantum dots

被引：0
|
作者：
Hyomi, K. [1 ]
Sakuma, M. [1 ]
Murayama, A. [1 ]
机构：
[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF LUMINESCENCE | 2009年 / 129卷 / 12期
基金：
日本学术振兴会;
关键词：
Quantum dot; Micro-photoluminescence; Spin injection; Diluted magnetic semiconductor;
D O I：
10.1016/j.jlumin.2009.02.035
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a micro-photoluminescence (m-PL) study of electron-spin injection under magnetic fields in self-assembled semiconductor quantum dots (QDs) of CdSe A characteristic band line-up of the CdSe QDs coupled with a diluted magnetic semiconductor quantum well (DMS-QW) of ZnCdMnSe through a ZnSe barrier layer enabled us to inject the electron spins from the DMS-QW into QDs An experimental evidence of the electron-spin injection was provided by observations of circularly polarized spectra from individual QDs in this coupled QD structure We find anti-correlation of PL intensity in between the DMS-QW (spin injector) and the individual QDs (spin receiver) (C) 2009 Elsevier B.V. All rights reserved
引用
收藏
页码：1715 / 1717
页数：3
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