Band Mixing Effects in Quantum Well Magnetoexcitons

• Authors: R. Wysocki , W. Bardyszewski , S. Schoser , M. Potemski
• Languages of publication: EN

Abstracts

EN

The influence of intersubband mixing in quantum wells of semiconductors with zinc-blende structure is studied both experimentally and theoretically. A multiband magnetoexciton model is described which takes into account k∙p mixing between valence subbands and the effective Coulomb interaction for an arbitrary confinement potential shape. Theoretical results reproduce very well the photoluminescence excitation spectra of GaAs/AlGaAs single quantum wells of various widths. In particular, the characteristic avoided crossing between the lowest light-hole exciton Landau level and excited heavy-hole exciton Landau level occurring at σ¯ polarization is accurately described by our theory.

Keywords

EN

71.70.Ej; 71.35.Ji

• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 5
• Pages: 1067-1071

Dates

published

1997-11

Contributors

author

R. Wysocki

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

author

W. Bardyszewski

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

author

S. Schoser

• Grenoble High Magnetic Field Laboratory, MPI/FKF and CNRS, BP 166 Grenoble, Grenoble cedex 9, France

author

M. Potemski

• Grenoble High Magnetic Field Laboratory, MPI/FKF and CNRS, BP 166 Grenoble, Grenoble cedex 9, France