Amplitude mode of charge density wave in TTF [ Ni ( dmit ) 2 ] 2 observed by electronic Raman scattering
Résumé
We measured the optical signature of charge density waves (CDWs) in the multiband conductor TTF[Ni(dmit)2]2 by electronic Raman scattering. At low energies, a hump develops below 60 K. This hump is associated to the amplitude mode of the CDW with an energy around 9 meV. Raman symmetry-resolved measurements show that the CDW amplitude mode is anisotropic and that the CDW can be associated to the band nesting of Ni(dmit)2 chains.
Domaines
Chimie de coordination| Origine | Fichiers produits par l'(les) auteur(s) |
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