Well-width dependence of D- cyclotron resonance in quantum wells.

Abstract

Negative-donor (${\mathit{D}}^{\mathrm{\ensuremath{-}}}$ center) cyclotron resonance is studied in GaAs quantum wells of different widths to obtain information about the well-width dependence of the ${\mathit{D}}^{\mathrm{\ensuremath{-}}}$ ground-state binding energy and optical transition energies in the range of 58--373 \AA{}. The experimental magneto-optical transition energy is shown to increase with decreasing well width, in good agreement with variational quantum Monte Carlo results.