Electron states and magnetophotoluminescence of elongated InAs/GaAs quantum dots

被引:0
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作者
Krapek, V. [1 ]
Kuldova, K. [2 ]
Oswald, J. [2 ]
Hospodkova, A. [2 ]
Hulicius, E. [2 ]
Humlicek, J. [1 ]
机构
[1] Masaryk Univ, Fac Sci, Kotlarska 2, CS-61137 Brno, Czech Republic
[2] Acad Sci Czech Republic, Inst Phys, Prague 16253, Czech Republic
来源
关键词
quantum dots; magnetophotoluminescence; elongation;
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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 have calculated the electronic structure of a single InAs/GaAs quantum dot in a perpendicular magnetic field. Considerable sensitivity of the shift of energy levels in magnetic field to a lateral elongation of the dots is demonstrated and a possibility to retrieve the elongation from magnetophotoluminescence spectra is discussed. Sensitivity analysis shows that spectra with at least two well resolved bands are needed for a reliable determination of the elongation.
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页码:901 / +
页数:2
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