Transient localization in crystalline organic semiconductors
Materials Science
2015-03-17 v2 Disordered Systems and Neural Networks
Statistical Mechanics
Abstract
A relation derived from the Kubo formula shows that optical conductivity measurements below the gap frequency in doped semiconductors can be used to probe directly the time-dependent quantum dynamics of charge carriers. This allows to extract fundamental quantities such as the elastic and inelastic scattering rates, as well as the localization length in disordered systems. When applied to crystalline organic semiconductors, an incipient electron localization caused by large dynamical lattice disorder is unveiled, implying a breakdown of semiclassical transport.
Cite
@article{arxiv.1010.2893,
title = {Transient localization in crystalline organic semiconductors},
author = {S. Ciuchi and S. Fratini and D. Mayou},
journal= {arXiv preprint arXiv:1010.2893},
year = {2015}
}
Comments
Revised version, to appear in Phys. Rev. B Rapid Communications