Article

Evidence of graphene-like electronic signature in silicene nanoribbons

CNR-ISM, via Fosso del Cavaliere, 00133 Roma, Italy
Applied Physics Letters (impact factor: 3.84). 07/2010; DOI:10.1063/1.3459143 pp.261905 - 261905-3
Source: IEEE Xplore

ABSTRACT We report on the electronic properties of straight, 1.6 nm wide, silicene nanoribbons on Ag(110), arranged in a one-dimensional grating with a pitch of 2 nm, whose high-resolution scanning tunneling microscopy images reveal a honeycomb geometry. Angle-resolved photoemission shows quantum confined electronic states of one-dimensional character. The silicon band dispersion along the direction of the nanoribbons suggests a behavior analogous to the Dirac cones of graphene on different substrates.

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Keywords

Angle-resolved photoemission
 
different substrates
 
Dirac cones
 
electronic states
 
high-resolution scanning tunneling microscopy images
 
nanoribbons
 
one-dimensional grating
 
silicene nanoribbons