| Issue |
Europhys. Lett.
Volume 43, Number 3, August I 1998
|
|
|---|---|---|
| Page(s) | 337 - 342 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00362-7 | |
| Published online | 01 September 2002 | |
Direct evidence for oscillatory screening in the quantum Hall effect regime
1
Groupe d'Etude des Semiconducteurs, UMR CNRS-Université Montpellier II, 34095, Montpellier, France
2
Institute of Physics, Wroclaw Technical University - 50-370 Wroclaw, Poland
3
Institute of Physics, Polish Academy of Sciences - 02668 Warsaw, Poland
4
Laboratoire de Microstructure et de Microélectronique, CNRS - 98220 Bagneux, France
Received:
20
January
1998
Accepted:
8
June
1998
Oscillations of magneto-donor binding energies are observed in
photoluminescence spectra of modulation-doped 
heterostructure. Both the experiment and the underlying theory provide direct
evidence for an oscillatory screening of the Coulomb interaction by
two-dimensional electron gas in the quantum Hall effect regime.
PACS: 73.20.Hb – Impurity and defect levels; energy states of adsorbed species / 73.40.Hm – Quantum Hall effect (integer and fractional) / 78.55.-m – Photoluminescence
© EDP Sciences, 1998
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