Daniel Primetzhofer

Experimental study of Kohn anomalies and phonon dispersion in graphene using Raman spectroscopy

The phenomenon of Kohn anomalies (KA) in graphene is characterized by a linear phonon dispersion law at the Γ and K points of the first Brillouin zone. Until now, experimental confirmation of the KA has been based on the observation of phonon softening during inelastic x-ray scat...