Intershell Exchange Interaction in Charged GaAlAs Quantum Dots

被引：0
|
作者：
Molas, M. R. [1 ,2 ]
Nicolet, A. A. L. [2 ]
Potemski, M. [2 ]
Babinski, A. [1 ]
机构：
[1] Univ Warsaw, Inst Expt Phys, Fac Phys, PL-00681 Warsaw, Poland
[2] CNRS UJF UPS INSA, Lab Natl Champs Magnet Intenses, F-38042 Grenoble, France
来源：
ACTA PHYSICA POLONICA A | 2013年 / 124卷 / 05期
关键词：
EXCITONS;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Optical anisotropy of charged excitons and biexcitons related to the single-particle s- and p-shell emission in GaAlAs/AlAs quantum dots is investigated. The polarization-dependence and time-resolved micro-photoluminescence measurements were performed. Cross-correlation measurements were used to identify the ladder of excitonic states and allowed us to show two cascade pathways, including the spin singlet and triplet states of charged excitons and biexcitons. The fine structure of the studied states is described and analysed in terms of electron-electron, hole-hole, and electron-hole exchange interactions.
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页码：785 / 787
页数：3
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