Dynamics of Frenkel excitons in pentacene
Strongly Correlated Electrons
2018-11-09 v2
Abstract
The dispersion relation for noninteracting excitons and the influence of perturbative correction is examined in the case of pentacene structure. The values of exchange integrals are determined by the nonlinear fits to the experimental dispersion data obtained by inelastic electron scattering in Phys. Rev. Lett. \textbf{98}, 037402 (2007). We obtain theoretical dispersion curves along four different directions in the Brillouin zone which possess the same periodicity as the experimental data. We also showed that perturbative corrections are negligible since the exciton gap in dispersion relation is huge in comparison to exchange integrals.
Keywords
Cite
@article{arxiv.1810.00691,
title = {Dynamics of Frenkel excitons in pentacene},
author = {Sonja Gombar and Petar Mali and Milan Pantić and Milica Pavkov-Hrvojević and Slobodan Radošević},
journal= {arXiv preprint arXiv:1810.00691},
year = {2018}
}
Comments
7 pages, 9 figures