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Regensburg 2007 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 27: Symposium “Graphene”

TT 27.2: Talk

Thursday, March 29, 2007, 14:30–14:55, H20

Magnetic confinement of massless Dirac fermions in grapheneA. De Martino, L. Dell Anna, •W. Häusler, and R. Egger — Heinrich-Heine-Universität Düsseldorf,*Institut für Theoretische Physik IV, Universitätsstraße*1, Gebäude 25.32, D-40225 Düsseldorf

Due to Klein tunneling, electrostatic potentials are unable to confine Dirac electrons. We discuss how to solve the corresponding Dirac equation for massless fermions, describing electrons in a monolayer of graphene, in the presence of various profiles of inhomogeneous magnetic fields. As a result, discrete electronic levels are obtained, similar as for the familiar electrostatic Schrödinger quantum dot.

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