Intersubband plasmons in quasi-one-dimensional electron systems on a liquid helium surface
Strongly Correlated Electrons
2009-11-10 v1 Mesoscale and Nanoscale Physics
Abstract
The collective excitation spectra are studied for a multisubband quasi-one-dimensional electron gas on the surface of liquid helium. Different intersubband plasmon modes are identified by calculating the spectral weight function of the electron gas within a 12 subband model. Strong intersubband coupling and depolarization shifts are found. When the plasmon energy is close to the energy differences between two subbands, Landau damping in this finite temperature system leads to plasmon gaps at small wavevectors.
Cite
@article{arxiv.cond-mat/0309323,
title = {Intersubband plasmons in quasi-one-dimensional electron systems on a liquid helium surface},
author = {Marcos R. S. Tavares and G. -Q. Hai and F. M. Petters and N. Studart},
journal= {arXiv preprint arXiv:cond-mat/0309323},
year = {2009}
}
Comments
To be published as a Rapid Communication in Phys. Rev. B