Abstract
For interface-roughness scattering and for zero temperature we compare theoretical results for the mobility of the two-dimensional electron gas present in thin AlAs quantum wells with experimental results for a well of width L=45Å. The importance of many-body effects (exchange and correlation) on the mobility is discussed. For the mobility reasonable agreement between theory and experiment is obtained by taking into account a density dependent effective mass and multiple-scattering effects, which lead to a metal-insulator transition.
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