info:eu-repo/semantics/article
Periodically rippled graphene: growth and spatially resolved electronic structure
Fecha
2008-12Registro en:
Vázquez de Parga, L.; Calleja, F.; Borca, B.; Passeggi, Mario Cesar Guillermo; Hinarejos, J.; et al.; Periodically rippled graphene: growth and spatially resolved electronic structure; American Physical Society; Physical Review Letters; 100; 5; 12-2008; 568071-568074
0031-9007
Autor
Vázquez de Parga, L.
Calleja, F.
Borca, B.
Passeggi, Mario Cesar Guillermo
Hinarejos, J.
Guinea, F.
Miranda, R.
Resumen
We grow epitaxial graphene monolayers on Ru(0001) that cover uniformly the substrate over lateral distances larger than several microns. The weakly coupled graphene monolayer is periodically rippled and it shows charge inhomogeneities in the charge distribution. Real space measurements by scanning tunneling spectroscopy reveal the existence of electron pockets at the higher parts of the ripples, as predicted by a simple theoretical model. We also visualize the geometric and electronic structure of edges of graphene nanoislands.