Negative electronic compressibility enables electrically-induced charge density waves in a two-dimensional electron liquid
Mesoscale and Nanoscale Physics
2017-08-23 v2
Abstract
We show that the negative electronic compressibility of two-dimensional electronic systems at sufficiently low density enables the generation of charge density waves through the application of a uniform force field, provided no current is allowed to flow. The wavelength of the density oscillations is controlled by the magnitude of the (negative) screening length, and their amplitude is proportional to the applied force. Both are electrically tunable.
Cite
@article{arxiv.1705.06291,
title = {Negative electronic compressibility enables electrically-induced charge density waves in a two-dimensional electron liquid},
author = {Erica E. Hroblak and Alessandro Principi and Hui Zhao and Giovanni Vignale},
journal= {arXiv preprint arXiv:1705.06291},
year = {2017}
}
Comments
4 pages, 5 figures