Raman spectra of misoriented bilayer graphene Auteur(s): Poncharal Philippe, Ayari Anthony, Michel T., Sauvajol J.-L. (Article) Publié: Physical Review B, vol. 78 p.113407 (2008) Texte intégral en Openaccess : Ref HAL: hal-00276997_v1 Ref Arxiv: 0805.0511 DOI: 10.1103/PhysRevB.78.113407 WoS: 000259690800025 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 187 Citations Résumé: We compare the main feature of the measured Raman scattering spectra from single layer graphene with a bilayer in which the two layers are arbitrarily misoriented. The profiles of the 2D bands are very similar having only one component, contrary to the four found for commensurate Bernal bilayers. These results agree with recent theoretical calculations and point to the similarity of the electronic structures of single layer graphene and misoriented bilayer graphene. Another new aspect is that the dependance of the 2D frequency on the laser excitation energy is different in these two latter systems. |