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cond-mat2000★ 16 cited
Excitonic emission in the presence of a two dimensional electron gas: a microscopic understanding
Y. Yayon, M. Rappaport, V. Umansky +1
The near- and far-field photoluminescence spectra of a gated two-dimensional electron gas have been measured. Spatial fluctuations in the electron density are found to be manifeste…
cond-mat.mes-hall2000★ 41 cited
The onset of exciton absorption in modulation doped GaAs quantum wells
G. Yusa, H. Shtrikman, I. Bar-Joseph
We study the evolution of the absorption spectrum of a modulation doped GaAs/AlGaAs semiconductor quantum well with decreasing the carrier density. We find that there is a critical…