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arXiv · 1202.6077

Cyclotron-resonant exciton transfer between the nearly free and strongly localized radiative states of a two-dimensional hole gas in a high magnetic field

L. Bryja·J. Jadczak·A. Wojs·G. Bartsch·D. R. Yakovlev·M. Bayer·P. Plochocka·M. Potemski·D. Reuter·A. D. Wieck
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Abstract

Avoided crossing of the emission lines of a nearly free positive trion and a cyclotron replica of an exciton bound to an interface acceptor has been observed in the magneto-photoluminescence spectra of p-doped GaAs quantum wells. Identification of the localized state depended on the precise mapping of the anti-crossing pattern. The underlying coupling is caused by an exciton transfer combined with a resonant cyclotron excitation of an additional hole. The emission spectrum of the resulting magnetically tunable coherent state probes weak localization in the quantum well.

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L. Bryja, J. Jadczak, A. Wojs, G. Bartsch, D. R. Yakovlev, M. Bayer, P. Plochocka, M. Potemski, D. Reuter, A. D. Wieck. 2012-02-27. Cyclotron-resonant exciton transfer between the nearly free and strongly localized radiative states of a two-dimensional hole gas in a high magnetic field. https://doi.org/10.1103/physrevb.85.165308

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