Suter, DieterFustmann, S.Eickhoff, M.2008-06-022008-06-022005-05-31Eickhoff, M.; Fustmann, S.; Suter, D.: Light-induced Knight shifts in GaAs/AlGaAs quantum wells. In: Physical Review B Jg. 71(2005), 195332.http://hdl.handle.net/2003/2538310.17877/DE290R-11828The coupling between quantum-confined electron spins in semiconductor heterostructures and nuclear spins dominates the dephasing of spin qubits in III/V semiconductors. The interaction can be measured through the electron-spin dynamics or through its effect on the nuclear spin. Here, we discuss the resulting shift of the NMR frequency (the Knight shift) and measure its size as a function of the charge-carrier density for photoexcited charge carriers in a GaAs quantum well.enThe American Physical Society53010.1103/PhysRevB.71.195332article (journal)