Using the random-phase approximation, the density-density correlation function including intra- and inter-Landau level transitions in a finite type-I superlattice is obtained under magnetic fields parallel to interfaces, on the basis of a simple model...
Using the random-phase approximation, the density-density correlation function including intra- and inter-Landau level transitions in a finite type-I superlattice is obtained under magnetic fields parallel to interfaces, on the basis of a simple model of parabolic confining potentials. The dispersion relations for surface and bulk states are obtained as a function of magnetic field strength, momentum wave vector, and the ratio of the confining potential parameter to cyclotron resonance frequency for the cases, parabolic confining potential with magnetic field and parabolic confining potential with no magnetic field. The Raman intensities due to the bulk and surface magnetoplasmon for the above cases are also obtained for incoming light energy.