Journal
PHYSICAL REVIEW B
Volume 82, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.197401
Keywords
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Funding
- NSF [DMR-0706654]
- EPSRC [EP/E063519/1]
- Engineering and Physical Sciences Research Council [EP/E063519/1] Funding Source: researchfish
- EPSRC [EP/E063519/1] Funding Source: UKRI
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We analyze the response of bilayer graphene to an external transverse electric field using a variational method. A previous attempt to do so in a recent paper by Falkovsky [Phys. Rev. B 80, 113413 (2009)] is shown to be flawed. Our calculation reaffirms the original results obtained by one of us [E. McCann, Phys. Rev. B 74, 161403(R) (2006)] by a different method. Finally, we generalize these original results to describe a dual-gated bilayer graphene device.
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