OSCILLATORY BEHAVIOR OF QUANTUM TRANSPORT IN QUASI-2-DIMENSIONAL QUANTUM-WELLS

The magnetoconductivity parallel to the walls of a quasi-two-dimension al quantum well, with a magnetic field B = B (z) over cap applied norm al to its barriers, is obtained by taking the linear-response limit of the results of a previously developed nonlinear response theory. The conductivity is porportional to the relaxation rates, which are closel y related to the oscillatory behaviors of the magnetophonon resonances and/or the magneto-impurity resonances. The relaxation rates are eval uated analytically for various scattering mechanisms including acousti c phonon and optical phonon, as well as impurity scatterings. The depe ndences of the conductivity and the relaxation rate on the magnetic fi eld, the thickness of the well, and the temperature are shown explicit ly. Some of the results obtained here agree with those available in th e literature.