ELECTRONIC AND VIBRONIC OPTICAL-EXCITATIONS OF A QUARTER-FILLED PERIODIC OCTAMER

Authors
MENEGHETTI M FELTRE L
Citation
M. Meneghetti et L. Feltre, ELECTRONIC AND VIBRONIC OPTICAL-EXCITATIONS OF A QUARTER-FILLED PERIODIC OCTAMER, Synthetic metals, 85(1-3), 1997, pp. 1629-1630
Citations number
8
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
85
Issue
1-3
Year of publication
1997
Pages
1629 - 1630
Database
ISI
SICI code
0379-6779(1997)85:1-3<1629:EAVOOA>2.0.ZU;2-Y
Abstract
Linear optical conductivity spectra of 1-D quarter-filled charge trans fer crystals are interpreted on the basis of a periodic octamer and a Holstein-Hubbard model. It is shown how the low frequency spectral fea tures are due to combined effects of electron correlations and of the dimerization of the system. Fermion-phonon interactions introduce othe r spectral features which produce strong changes in the spectra.