Evidence for 2k_F Electron-Electron Scattering Processes in Coulomb Drag
Mesoscale and Nanoscale Physics
2009-11-07 v1
Abstract
Measurements and calculations of Coulomb drag between two low density, closely spaced, two-dimensional electron systems are reported. The experimentally measured drag exceeds that calculated in the random phase approximation by a significant, and density dependent, factor. Studies of the dependence of the measured drag on the difference in density between the two layers clearly demonstrate that previously ignored q=2k_F scattering processes can be very important to the drag at low densities and small layer separations.
Cite
@article{arxiv.cond-mat/0206547,
title = {Evidence for 2k_F Electron-Electron Scattering Processes in Coulomb Drag},
author = {M. Kellogg and J. P. Eisenstein and L. N. Pfeiffer and K. W. West},
journal= {arXiv preprint arXiv:cond-mat/0206547},
year = {2009}
}
Comments
5 pages, 5 figures