The reflectance spectra of [SMe3][Ni(dmit)(2) (dmit=1,3-dithiole-2 thione-4,5-dithiolato), quarter-filled organic conductor with strongly dimerized structure, will be discussed in the framework of the new Raman results for this compound. The spectra are interpreted on the basis of a dimerized Hubbard octamer model, which accounts for the low energy electronic transitions and for the coupling of the electronic excitations with the intramolecular vibrations.
Optical excitations in quarter-filled Ni(dmit)2 based compound described by a dimerized octamer model
FELTRE, LUIGINO;MENEGHETTI, MORENO
1999
Abstract
The reflectance spectra of [SMe3][Ni(dmit)(2) (dmit=1,3-dithiole-2 thione-4,5-dithiolato), quarter-filled organic conductor with strongly dimerized structure, will be discussed in the framework of the new Raman results for this compound. The spectra are interpreted on the basis of a dimerized Hubbard octamer model, which accounts for the low energy electronic transitions and for the coupling of the electronic excitations with the intramolecular vibrations.
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