Intra-Landau-level collective excitations in a bilayer disordered electronic system
arXiv:cond-mat/0309076 · doi:10.1103/PhysRevB.71.153308
Abstract
We investigate intra-Landau-level collective excitations in a bilayer disordered two-dimensional electron system exposed to a perpendicular magnetic field. The energy spectrum is calculated within the random phase approximation by taking into account electron-impurity scattering in the self-consistent Born approximation which includes consistent vertex corrections. Signatures of these bilayer excitations in drag and collective excitation measurements are identified.
4 pages, 3 figures