We analyze current-voltage characteristics taken on Au-doped indium-oxide films. By fitting a scaling function to the data, we extract the electron-phonon scattering rate as function of temperature, which yields a quadratic dependence of the electron-phonon scattering rate on temperature from 1K down to 0.28K. The origin of this enhanced electron-phonon scattering rate is ascribed to the mechanism proposed by Sergeev and Mitin.
@article{arxiv.cond-mat/0505595,
title = {Non-ohmicity and energy relaxation in diffusive 2D metals},
author = {Roy Ceder and Oded Agam and Zvi Ovadyahu},
journal= {arXiv preprint arXiv:cond-mat/0505595},
year = {2009}
}