Quantum pumping in graphene with a perpendicular magnetic field

Details Quantum pumping in graphene with a perpendicular magnetic field Quantum pumping in graphene with a perpendicular magnetic field

2010-06-22

arxiv.org/abs/1006.4268v2

Appl. Phys. Lett. 97, 243112 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 3 figures

Scientific paper

10.1063/1.3528457

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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