Magnetic confinement of massless Dirac fermions in graphene

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,...

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Bibliographic Details
Published in:Physical review letters 2007-02, Vol.98 (6), p.066802-066802, Article 066802
Main Authors: De Martino, A, Dell'Anna, L, Egger, R
Format: Article
Language:English
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Summary: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.98.066802