AN INVESTIGATION INTO THE POSSIBLE EFFECTS OF INELASTIC INTER-LANDAU LEVEL SCATTERING ON THE RESISTIVITY AND THERMOPOWER OF A 2-DIMENSIONAL ELECTRON-GAS

The paper presents some results of an investigation into the quantum oscillations in the resistivity and thermopower of a 2D electron gas at low magnetic fields in the liquid He-4 temperature range. The thermopower is expected to be controlled by electron-phonon scattering in this temperature range and it should be a useful probe of the different effects due to inelastic intra- and inter-Landau level scattering. We do see many new phenomena which can be explained in terms of the transition from the one type of scattering to the other as the temperature and field are changed. We also see some new effects in the resistivity which may also be due to electron-phonon scattering.