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Phys Rev Lett. 2007 Feb 9;98(6):066802. Epub 2007 Feb 6.

Magnetic confinement of massless Dirac fermions in graphene.

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  • 1Institut für Theoretische Physik, Heinrich-Heine-Universität, D-40225 Düsseldorf, Germany.

Abstract

Because of Klein tunneling, electrostatic potentials are unable to confine Dirac electrons. We show that it is possible to confine massless Dirac fermions in a monolayer graphene sheet by inhomogeneous magnetic fields. This allows one to design mesoscopic structures in graphene by magnetic barriers, e.g., quantum dots or quantum point contacts.

PMID:
17358966
[PubMed]
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