| Issue |
Europhys. Lett.
Volume 41, Number 5, March I 1998
|
|
|---|---|---|
| Page(s) | 559 - 564 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00191-8 | |
| Published online | 01 September 2002 | |
Magnetic-field dependence of the electron–LO-phonon interaction in a 2D electron gas
1
Grenoble High Magnetic Field Laboratory, MPI-FKF and CNRS,
BP 166, 38042 Grenoble Cedex 09, France
2
Max-Planck-Institut für Festkörperforschung, 70569 Stuttgart,
Germany
3
Paul-Drude-Institut für Festkörperelektronik, 10117 Berlin,
Germany
Received:
21
August
1997
Accepted:
8
January
1998
The intensities of the circularly polarized luminescence of the radiative recombination between two-dimensional electrons and bound holes and of its longitudinal optic (LO) phonon low-energy sideband have been investigated at low temperatures of about 100 mK as a function of the magnetic field. These replica reproduce exactly the main magneto-luminescence spectra including the singularities specific for the gaps related to the integer and the fractional quantum hall states. A model without any adjustable parameter is proposed to explain the results and reproduces semi-quantitatively the observed variation.
PACS: 78.20.Ls – Magnetooptical effects / 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers)
© EDP Sciences, 1998
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