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Quantum Chemistry

Origin of the oscillator strength of the triplet state of a trion in a magnetic field.

PubMed
Authors: Sanvitto D, Whittaker DM, Shields AJ, Simmons MY, Ritchie DA, Pepper M

Year

2002

Paper ID

13121

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

96

Citations

N/A

Abstract

The dynamics of the spin-triplet trion state, under high magnetic field in a GaAs/AlGaAs quantum well, are studied using time resolved spectroscopy. The oscillator strength of the triplet transition is shown to rise with increasing electron density, in good agreement with a theoretical model where the trion interacts with excess electrons in the quantum well. This analysis suggests that the spin-triplet trion state, which is expected to be an optically "dark" state, is experimentally observable due to the interactions with the excess electrons, demonstrating that X- cannot be regarded as an isolated three particle complex.

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  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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  • The dynamics of the spin-triplet trion state, under high magnetic field in a GaAs/AlGaAs quantum well, are studied using time resolved spectroscopy.

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.89.246805 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/12484972/

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