Tailoring the single-mode electronic region in zigzag graphene nanoribbons

Author

Cresti, A. ; Grosso, G. ; Ruberti, M. ; Parravicini, G. Pastori

Author_Institution

CEA, LETI-Minatec, Grenoble, France

fYear

2009

fDate

22-24 Dec. 2009

Firstpage

450

Lastpage

453

Abstract

We study the low-energy electronic structure of massless and massive zigzag graphene nanoribbons and the effect due to edge and bulk model perturbations. We consider also the presence of a uniform magnetic field threading the ribbons and the induced energy splitting of the two Dirac valleys. The emergence of energy gaps and valley asymmetry enriches the perspectives of novel devices based on relativistic-like carriers.

Keywords

Dirac equation; energy gap; graphene; nanostructured materials; perturbation techniques; C; Dirac valleys; bulk model perturbation; edge model perturbation; energy gaps; energy splitting; low-energy electronic structure; massive zigzag graphene nanoribbons; massless zigzag graphene nanoribbons; relativistic-like carriers; single-mode electronic region; uniform magnetic field threading; valley asymmetry; Charge carrier processes; Circuit topology; Lattices; Magnetic fields; Magnetic materials; Magnetosphere; Nanoscale devices; Physics; Shape; Wires; band structure; graphene ribbons; magnetic effects;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Trends in Electronic and Photonic Devices & Systems, 2009. ELECTRO '09. International Conference on

Conference_Location

Varanasi

Print_ISBN

978-1-4244-4846-3

Type

conf

DOI

10.1109/ELECTRO.2009.5441071

Filename

5441071