Güven, KaanTanatar, Bilal2015-07-282015-07-2819970038-1098http://hdl.handle.net/11693/11024We study the Coulomb drag rate for electrons in a double-quantum-well structure taking into account the electron-optical phonon interactions. The full wave vector and frequency dependent random-phase approximation (RPA) at finite temperature is employed to describe the effective interlayer Coulomb interaction. The electron-electron and electron-optical phonon couplings are treated on an equal footing. The electron-phonon mediated interaction contribution is investigated for different layer separations and layer densities. We find that the drag rate at high temperatures (i.e., T greater than or equal to 0.3 E-F) is dominated by the coupled plasmon-phonon of the system. Including the local-field effects in an approximate way we estimate the importance of intralayer correlations to be significant. (C) 1997 Elsevier Science Ltd.English2-dimensional Electron-systemsSpatially separated electronPerpendicular magnetic-fieldCoulomb dragMutual frictionHole transportGas layersApproximationHeterostructuresConductivityArticle10.1016/S0038-1098(97)00371-2