Quantum phase-space approach to the transport simulation in graphene devices

Author

Morandi, Omar ; Schürrer, Ferdinand

Author_Institution

Inst. of Theor. & Comput. Phys., Tech. Univ. Graz, Graz, Austria

fYear

2010

fDate

26-29 Oct. 2010

Firstpage

1

Lastpage

4

Abstract

Graphene is a novel material constituted by a two-dimensional carbon lattice. The electron dynamics in graphene is governed by the Dirac equation. The Wigner-Weyl formalism is used to describe the transport of electrons in graphene including quantum effects. A diagonalization procedure regarding the pseudo-spin degree of freedom is proposed. Our approach highlights the effect of Klein tunneling and we study the correction of the total current in intrinsic graphene induced by this phenomena. The connection of our formalism with the Berry phase approach is also investigated.

Keywords

Berry phase; Dirac equation; graphene; transport processes; tunnelling; Berry phase; C; Dirac equation; Klein tunneling; diagonalization procedure; electron dynamics; graphene device; pseudospin degree of freedom; quantum effects; quantum phase space approach; transport simulation; two dimensional carbon lattice; Berry phase; Carbon; Distribution functions; Electric potential; Equations; Scattering; Tunneling;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electronics (IWCE), 2010 14th International Workshop on

Conference_Location

Pisa

Print_ISBN

978-1-4244-9383-8

Type

conf

DOI

10.1109/IWCE.2010.5677979

Filename

5677979