Electronic superlattices in corrugated graphene
Artikel i vetenskaplig tidskrift, 2008

We theoretically investigate electron transport through corrugated graphene ribbons and show how the ribbon curvature leads to an electronic superlattice with a period set by the corrugation wavelength. Transport through the ribbon depends sensitively on the superlattice band structure which, in turn, strongly depends on the geometry of the deformed sheet. In particular, we find that for ribbon widths where the transverse level separation is comparable to the band edge energy, a strong current switching occurs as a function of an applied back gate voltage. Thus, artificially corrugated graphene sheets or ribbons can be used for the study of Dirac fermions in periodic potentials. Furthermore, this provides an additional design degree of freedom for graphene-based electronics.

graphene

Författare

Andreas Isacsson

Chalmers, Teknisk fysik, Kondenserade materiens teori

Magnus Jonsson

Chalmers, Teknisk fysik, Kondenserade materiens teori

Jari Kinaret

Chalmers, Teknisk fysik, Kondenserade materiens teori

Mats Jonson

Göteborgs universitet

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 77 035423- 035423

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1103/PhysRevB.77.035423