Exciton and lattice-fluctuation effects in optical spectra of C60
| dc.creator | Harigaya, Kikuo | |
| dc.creator | Abe, Shuji | |
| dc.date | 1994-02-08 | |
| dc.date | 1998-02-17 | |
| dc.date.accessioned | 2026-07-07T08:58:48Z | |
| dc.date.available | 2026-07-07T08:58:48Z | |
| dc.description | A theory of optical excitations by using a tight binding model with long-range Coulomb interactions is developed. The model is applied to a C60 molecule and a cluster, and is treated by the Hartree-Fock approximation followed by a configuration interaction method. Lattice fluctuations are taken into account by a bond disorder model. We first examine what strength of Coulomb interaction is appropriate to describe the electronic structures observed by photo-electron and optical absorption spectroscopy. Then, we demonstrate that the photo-excited states are mainly intramolecular (i.e. Frenkel) excitons with small charge-transfer components. We examine to what extent the dipole forbidden transitions of a single C60 molecule become dipole-allowed by lattice fluctuations or intermolecular interactions. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9402039 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9402039 | |
| dc.identifier | Mol. Cryst. Liq. Cryst. 256 (1994) 825-830 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147473 | |
| dc.subject | Condensed Matter | |
| dc.title | Exciton and lattice-fluctuation effects in optical spectra of C60 | |
| dc.type | text |