Magnetooptic oscillations in the intensity of recombination radiation in connection with intersubband relaxation of 2D electrons
Kirpichev V. E., Kukushkin I. V., Timofeev V. B., Fal'ko V. I., von Klitzing K., Ploog K.
Magnetooptic oscillations of a new type have been observed in the intensity of the recombination radiation of 2D electrons from the first excited quantum-well subband at a GaAs-AlGaAs single heterojunction. These oscillations are explained in terms of an elastic relaxation of electrons upon a crossing of corresponding Landau levels of different subbands.