Quantum pumping in graphene with a perpendicular magnetic field

Journal article (2010)
Department
QN/Quantum Nanoscience (AS) (TU Delft)
Copyright: American Institute of Physics
DOI: https://doi.org/doi:10.1063/1.3528457
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Published Date

17-12-2010

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Source:

Applied Physics Letters, 97 (24), 2010

Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Abstract

We consider quantum pumping of Dirac fermions in a monolayer of graphene in the presence of a perpendicular magnetic field in the central pumping region. The two external pump parameters are electrical voltages applied to the graphene sheet on either side of the pumping region. We analyze this pump within scattering matrix formalism and calculate both pumped charge and spin currents. The predicted charge currents are of the order of 1000 nA, which is readily observable using current technology.

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