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Atomic collapse, Lorentz boosts, Klein scattering, and other quantum-relativistic phenomena in graphene

Author(s)
Shytov, Andrei; Rudner, Mark; Gu, Nan; Katsnelson, Mikhail; Levitov, Leonid
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Abstract
Electrons in graphene, behaving as massless relativistic Dirac particles, provide a new perspective on the relation between condensed matter and high-energy physics. We discuss atomic collapse, a novel state of superheavy atoms stripped of their discrete energy levels, which are transformed into resonant states. Charge impurities in graphene provide a convenient condensed matter system in which this effect can be explored. Relativistic dynamics also manifests itself in another system, graphene p-n junctions. We show how the transport problem in the presence of magnetic field can be solved with the help of a Lorentz transformation, and use it to investigate magnetotransport in p-n junctions. Finally, we review recent proposal to use Fabry-Perot resonances in p-n-p structures as a vehicle to investigate Klein scattering, another hallmark phenomenon of relativistic dynamics.
Description
Shytov, Andrei et al. “Atomic collapse, Lorentz boosts, Klein scattering, and other quantum-relativistic phenomena in graphene.” Solid State Communications 149.27-28 (2009): 1087-1093.
Date issued
2009-03
URI
http://hdl.handle.net/1721.1/52639
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Solid State Communications
Publisher
Elsevier
ISSN
0038-1098

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