Direct evidence for oscillatory screening in the quantum Hall effect regime

Oscillations of magneto-donor binding energies are observed in photoluminescence spectra of modulation-doped $\rm GaAs/Ga_{0.67}Al_{0.33}As$ heterostructure. Both the experiment and the underlying theory provide direct evidence for an oscillatory screening of the Coulomb interaction by two-dimension...

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Bibliographic Details
Published in:Europhysics letters 1998-08, Vol.43 (3), p.337-342, Article 337
Main Authors: Raymond, A, Couzinet, B, Elmezouar, M. I, Kubisa, M, Zawadzki, W, Etienne, B
Format: Article
Language:English
Subjects:
73.20.Hb
73.40.Hm
78.55.-m
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Summary:Oscillations of magneto-donor binding energies are observed in photoluminescence spectra of modulation-doped $\rm GaAs/Ga_{0.67}Al_{0.33}As$ 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.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i1998-00362-7