Direct and indirect exciton mixing in a slightly asymmetric double quantum well

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Resumen

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/Al0.33Ga0.67As DQW show clearly the different behaviours of the luminescence peaks for the indirect exciton IX and left direct exciton DX as functions 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 non-trivial mixing between excitonic states.

Idioma originalInglés
Páginas (desde-hasta)10011-10020
Número de páginas10
PublicaciónJournal of Physics Condensed Matter
Volumen12
N.º48
DOI
EstadoPublicada - 4 dic. 2000
Publicado de forma externa

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