A 4-site ring model is shown to be a convenient model system to study, on the basis of an Hubbard Hamiltonian, the linear and non-linear optical properties of 1D dimerized half-filled pi-conjugated compounds. By using this model one can fit the experimental spectra of representative organic conductors as K-TCNQ and trans-polyacetylene. These results show that electronic correlation is important for these materials.
Electronic Correlation of Organic Conductors Determined Through Linear and Nonlinear-optical Properties
MENEGHETTI, MORENO
1993
Abstract
A 4-site ring model is shown to be a convenient model system to study, on the basis of an Hubbard Hamiltonian, the linear and non-linear optical properties of 1D dimerized half-filled pi-conjugated compounds. By using this model one can fit the experimental spectra of representative organic conductors as K-TCNQ and trans-polyacetylene. These results show that electronic correlation is important for these materials.File in questo prodotto:
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