Large nanostructures of silicene have been successfully grown on graphene covered 6H-SiC (0001) substrates. The graphene plays an important role to obtain honeycomb structures of silicon in the sp2 configuration and acts as an ideal template for 2D materials. The scanning tunneling microscopy images showed nanosheets of silicene with a very small buckling among the Si atoms. Our scanning tunneling spectroscopy confirmed the metallic character of the deposited silicene in excellent agreement with band structure calculations that also exhibit the presence of Dirac cones.
Berbezier, I., Michon, A., Castrucci, P., Scarselli, M., Salvato, M., Scagliotti, M., et al. (2019). Silicene nanostructures grown on graphene covered SiC (0001) substrate. INTERNATIONAL JOURNAL OF NANOSCIENCE, 18(3-4) [10.1142/S0219581X19400398].
Silicene nanostructures grown on graphene covered SiC (0001) substrate
P. castrucci;M. Scarselli;M. Salvato;M. De Crescenzi
2019-01-01
Abstract
Large nanostructures of silicene have been successfully grown on graphene covered 6H-SiC (0001) substrates. The graphene plays an important role to obtain honeycomb structures of silicon in the sp2 configuration and acts as an ideal template for 2D materials. The scanning tunneling microscopy images showed nanosheets of silicene with a very small buckling among the Si atoms. Our scanning tunneling spectroscopy confirmed the metallic character of the deposited silicene in excellent agreement with band structure calculations that also exhibit the presence of Dirac cones.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
