Screening effects on the spin splitting in n-doped GaAs/AlGaAs quantum wells

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 6; no. 1; pp. 813 - 816
• Main Authors: Urdanivia, J., Iikawa, F., Brum, J.A., Maialle, M.Z., Hawrylak, P., Wasilewski, Z.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.02.2000
• Subjects: Exciton; Spin dynamics; Time-resolved spectroscopy; 78.47.+p; Spin dynamics; Exciton; Time-resolved spectroscopy; 78.66.-w

The spin dynamics of free carriers is studied by time-resolved photoluminescence in n-type GaAs/AlGaAs modulation-doped multi-quantum wells. We study a series of samples with different two-dimensional electron densities. The photoluminescence spectra obtained at fixed time delay present energy split...