Direct and indirect exciton mixing in a slightly asymmetric double quantum well
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We studied, theoretically, the optical absorption spectra for a slightly asymmetric double quantum well (DQW), in the presence of electric and magnetic fields. Recent experimental results for a 10.18/3.82/9.61 nm GaAs Al(_{.33} )Ga(_{.67})As DQW show clearly the different behavior in the luminescence peaks for the indirect exciton (IX) and left direct exciton (DX) as a function of the external electric field. We show that the presence of a peak near the (DX) peak, attributed to an impurity bound left (DX) in the experimental results, could be a consequence of the non-trivial mixing between excitonic states.
Cite
@article{arxiv.cond-mat/0007346,
title = {Direct and indirect exciton mixing in a slightly asymmetric double quantum well},
author = {Francisco Vera},
journal= {arXiv preprint arXiv:cond-mat/0007346},
year = {2009}
}
Comments
8 pages and 8 figures