Magnetic-field-dependent optical properties and interdot correlations in coupled quantum dots

被引：1
|
作者：
Bellucci, D [1 ]
Troiani, F [1 ]
Goldoni, G [1 ]
Molinari, E [1 ]
机构：
[1] Univ Modena, Dipartimento Fis, INFM, Natl Res Ctr NanoStruct & BioSyst Surfaces S3, I-41100 Modena, Italy
来源：
JOURNAL OF LUMINESCENCE | 2005年 / 112卷 / 1-4期
关键词：
coulomb correlations; magnetic field;
D O I：
10.1016/j.jlumin.2004.09.006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We theoretically investigate the properties of neutral and charged excitons in vertically coupled quantum dots, as a function of the in-plane magnetic field. The single-particle states are computed by numerically solving the 3D effective-mass equation, while the neutral- and charged-exciton states are obtained by means of a configuration interaction approach. We show that the field determines an enhancement of the interdot correlations, resulting in unexpected carrier localization. The field effect on the excitonic binding energies is also discussed, and is shown to strongly depend on the charging. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：109 / 112
页数：4
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