Optical excitations in a quarter-filled Ni(dmit)2based compound described by a dimerized octamer model

  • Pokhodnya K
  • Cassoux P
  • Feltre L
 et al. 
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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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  • K. I. Pokhodnya

  • P. Cassoux

  • L. Feltre

  • M. Meneghetti

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