Exciton Exchange between Nearly-Free and Acceptor-Bound States of a Positive Trion Assisted by Cyclotron Excitation

• Authors: J. Jadczak , L. Bryja , A. Wójs , G. Bartsch , D. Yakovlev , M. Bayer , P. Plochocka , M. Potemski , D. Reuter , A. Wieck
• Languages of publication: EN

Abstracts

EN

In magneto-photoluminescence spectra of a two-dimensional hole gas in a GaAs quantum well we observe coupling of two different radiative states. The pair of coupled states are an acceptor-bound trion AX^{+} and an essentially free (only weakly localized by a shallow lateral potential) trion X^{+}, brought into resonance by an additional cyclotron excitation controlled by the magnetic field. The coupling mechanism is the exciton transfer, and the optical signature is a clear anticrossing of the emission lines of an X^{+} and a cyclotron replica of the AX^{+}.

Keywords

EN

73.20.Mf; 71.35.Ji; 71.35.Pq; 78.20.Ls

Discipline

• 78.20.Ls: Magneto-optical effects(for magneto-optical devices, see 85.70.Sq)
• 71.35.Ji: Excitons in magnetic fields; magnetoexcitons
• 73.20.Mf: Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)(for collective excitations in quantum Hall effects, see 73.43.Lp)
• 71.35.Pq: Charged excitons (trions)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 5
• Pages: 600-601

Dates

published

2011-05

Contributors

author

J. Jadczak

• Institute of Physics, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland

author

L. Bryja

• Institute of Physics, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland

author

A. Wójs

• Institute of Physics, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland

author

G. Bartsch

• Experimentelle Physik 2, Technische Universität Dortmund, D-44227 Dortmund, Germany

author

D. Yakovlev

• Experimentelle Physik 2, Technische Universität Dortmund, D-44227 Dortmund, Germany

author

M. Bayer

• Experimentelle Physik 2, Technische Universität Dortmund, D-44227 Dortmund, Germany

author

P. Plochocka

• Grenoble High Magnetic Field Laboratory, CNRS, 38-042 Grenoble, France

author

M. Potemski

• Grenoble High Magnetic Field Laboratory, CNRS, 38-042 Grenoble, France

author

D. Reuter

• Lehrstuhl fur Festkörperphysik, Ruhr Universität, Universitätstr., Bochum, Germany

author

A. Wieck

• Lehrstuhl fur Festkörperphysik, Ruhr Universität, Universitätstr., Bochum, Germany

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Identifiers

DOI

10.12693/APhysPolA.119.600