Vibrational signature of the graphene nanoribbon edge structure from high-resolution electron energy-loss spectroscopy

N. Cavani, M. De Corato, A. Ruini, D. Prezzi, E. Molinari, A. Lodi Rizzini, A. Rosi, R. Biagi, V. Corradini, X.-Y. Wang, X. Feng, A. Narita, K. Muellen, and V. De Renzi