Time Resolved Magnetophotoluminescence of Biased GaAs/AlGaAs Double Quantum Well Structure

• Authors: K. Surowiecka , A. Wysmołek , R. Stępniewski , M. Potemski , M. Henini
• Languages of publication: EN

Abstracts

EN

Time resolved photoluminescence of double quantum well structure was investigated versus electric and magnetic fields applied across the sample. The emission due to direct excitons (electron and hole are localized within the same quantum well) decays fast at the nanosecond timescale, whereas the recombination kinetics of indirect excitons is much slower and spreads over microseconds. The time evolution of indirect exciton emission is shown to be altered by application of either electric or magnetic field. This reflects the non-trivial effects of exciton localization which leads to the non-exponential decays of the indirect exciton emission.

Keywords

EN

71.35.Ji; 78.67.De

Discipline

• 78.67.De: Quantum wells
• 71.35.Ji: Excitons in magnetic fields; magnetoexcitons

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 5
• Pages: 1369-1374

Dates

published

2008-11

received

2008-06-07

Contributors

author

K. Surowiecka

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

A. Wysmołek

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

R. Stępniewski

• Institute of Experimental Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

M. Potemski

• Grenoble High Magnetic Fields Laboratory, CNRS, Grenoble, France

author

M. Henini

• School of Physics and Astronomy, University of Nottingham, England

References

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• 3. A. Morel, P. Lefebvre, S. Kalliakos, T. Taliercio, T. Bretagnon, B. Gil, Phys. Rev. B 68, 045331 (2003)
• 4. A. Aleksandrou, J.A. Kash, E.E. Mendez, M. Zachau, J.M. Hong, T. Fukuzawa, Y. Hase, Phys. Rev. B 42, 9225 (1990)

Identifiers

DOI

10.12693/APhysPolA.114.1369