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From spatially indirect to momentum-space indirect exciton by in-plane magnetic field

L. V. Butov·A. V. Mintsev·Yu. E. Lozovik·K. L. Campman·A. C. Gossard
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Abstract

In-plane magnetic field is found to change drastically the photoluminescence spectra and kinetics of interwell excitons in GaAs/AlGaAs coupled quantum wells. The effect is due to the in-plane magnetic field induced displacement of the interwell exciton dispersion in a momentum space, which results in the transition from the momentum-space direct exciton ground state to the momentum-space indirect exciton ground state. In-plane magnetic field is, therefore, an effective tool for the exciton dispersion engineering.

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L. V. Butov, A. V. Mintsev, Yu. E. Lozovik, K. L. Campman, A. C. Gossard. 1999-12-14. From spatially indirect to momentum-space indirect exciton by in-plane magnetic field. https://doi.org/10.1103/physrevb.62.1548

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