Measurement of miniband parameters of a doped superlattice by photoluminescence in high magnetic fields

R. F. Oliveira, A. B. Henriques, T. E. Lamas +2

We have studied a 50/50Åsuperlattice of GaAs/Al${}_{0.21}$Ga${}_{0.79}$As composition, modulation-doped with Si, to produce $n=1.4\times 10^{12}$ cm${}^{-2}$ electrons per superlattice p…