Anomalous dispersion of optical phonons at the neutral-ionic transition: Evidence from diffuse X-ray scattering
Strongly Correlated Electrons
2009-11-13 v1
Abstract
Diffuse X-ray data for mixed stack organic charge-transfer crystals approaching the neutral-ionic phase transition can be quantitatively explained as due to the softening of the optical phonon branch. The interpretation is fully consistent with vibrational spectra, and underlines the importance of electron-phonon coupling in low-dimensional systems with delocalized electrons.
Cite
@article{arxiv.0708.3437,
title = {Anomalous dispersion of optical phonons at the neutral-ionic transition: Evidence from diffuse X-ray scattering},
author = {Gabriele D'Avino and Alberto Girlando and Anna Painelli and Marie-Hélène Lemée-Cailleau and Zoltán G. Soos},
journal= {arXiv preprint arXiv:0708.3437},
year = {2009}
}
Comments
4 pages, 4 figures