Piezoelectric electron-phonon interaction in impure semiconductors: 2D electrons versus composite fermions
Mesoscale and Nanoscale Physics
2009-10-30 v1
Abstract
We develop a unified treatment of the piesoelectric coupling between two-dimensional electrons and bulk phonons in both cases of zero and strong magnetic fields, the latter corresponding to even denominator filling fractions. In contrast to the case of coupling via the deformation potential, the leading contributions due to impurity-renormalized electron-phonon vertices are not exactly cancelled by processes of inelastic electron-impurity scattering. Electron energy relaxation time, diffusion correction to the conductivity, and phonon emission rate by hot electrons are computed for realistic heterostructures.
Keywords
Cite
@article{arxiv.cond-mat/9705254,
title = {Piezoelectric electron-phonon interaction in impure semiconductors: 2D electrons versus composite fermions},
author = {D. V. Khveshchenko and Michael Reizer},
journal= {arXiv preprint arXiv:cond-mat/9705254},
year = {2009}
}
Comments
12 pages, Latex, Nordita report