Linear optical conductivity spectra of 1-D quarter-filled charge transfer crystals are interpreted on the basis of a periodic octamer and a Holstein-Hubbard model. It is shown how the low frequency spectral features are due to combined effects of electron correlations and of the dimerization of the system. Fermion-phonon interactions introduce other spectral features which produce strong changes in the spectra.

Electronic and vibronic excitations of a quarter-filled periodic octamer

MENEGHETTI, MORENO;FELTRE, LUIGINO
1997

Abstract

Linear optical conductivity spectra of 1-D quarter-filled charge transfer crystals are interpreted on the basis of a periodic octamer and a Holstein-Hubbard model. It is shown how the low frequency spectral features are due to combined effects of electron correlations and of the dimerization of the system. Fermion-phonon interactions introduce other spectral features which produce strong changes in the spectra.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/131648
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