A THEORY OF HOT-ELECTRON QUANTUM MAGNETOTRANSPORT IN QUASI-2-DIMENSIONAL QUANTUM-WELLS

Based on the formalism of the nonlinear response theory developed prev iously, the nonlinear de magnetoconductivity parallel to the walls of a quantum well, with a magnetic field B = Bz applied normal to its bar riers, is evaluated analytically for optical-phonon, acoustic-phonon, and impurity scattering. For optical-phonon scattering, strong electri c fields convert the normal magnetophonon maxima into minima and vice versa and shift the resonance peaks to higher peaks side. For acoustic -phonon and impurity scattering at very low temperatures, the fields g ive rise to an additional oscillatory structure, not occurring in the weak-field case, for a narrow well. Some of the results obtained here are in accordance with those available in the literature.