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cond-mat2002★ 19 cited
Long-range spatial correlations in the exciton energy distribution in GaAs/AlGaAs quantum-wells
Y. Yayon, A. Esser, M. Rappaport +3
Variations in the width of a quantum well (QW) are known to be a source of broadening of the exciton line. Using low temperature near-field optical microscopy, we have exploited th…
cond-mat.mes-hall2002★ 9 cited
Anisotropy and periodicity in the density distribution of electrons in a quantum-well
Y. Yayon, M. Rappaport, V. Umansky +1
We use low temperature near-field optical spectroscopy to image the electron density distribution in the plane of a high mobility GaAs quantum well. We find that the electrons are…