Inelastic Scattering from Local Vibrational Modes
Strongly Correlated Electrons
2009-11-13 v1 Mesoscale and Nanoscale Physics
Abstract
We study a nonuniversal contribution to the dephasing rate of conduction electrons due to local vibrational modes. The inelastic scattering rate is strongly influenced by multiphonon excitations, exhibiting oscillatory behaviour. For higher frequencies, it saturates to a finite, coupling dependent value. In the strong coupling limit, the phonon is almost completely softened, and the inelastic cross section reaches its maximal value. This represents a magnetic field insensitive contribution to the dephasing time in mesoscopic systems, in addition to magnetic impurities.
Keywords
Cite
@article{arxiv.0806.1680,
title = {Inelastic Scattering from Local Vibrational Modes},
author = {Balázs Dóra and Miklós Gulácsi},
journal= {arXiv preprint arXiv:0806.1680},
year = {2009}
}
Comments
5 pages, 3 figures