Reducedgfactor of subband Landau levels in AlGaAs/GaAs heterostructures

Abstract
The reduction of the g factor of subband Landau levels in the n-inversion channel of AlGaAs/GaAs heterostructures, which has been observed in electron-spin-resonance experiments by Stein, von Klitzing, and Weimann [Phys. Rev. Lett. 51, 130 (1983)], can be explained quantitatively by the taking into account of the nonparabolicity of the bulk band structure in the subband calculation.