Rights statement: © 2010 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Comment on “Screening in gated bilayer graphene”
AU - Fogler, M M
AU - McCann, Edward
N1 - © 2010 The American Physical Society
PY - 2010/11/22
Y1 - 2010/11/22
N2 - 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, 161403R (2006)] by a different method. Finally, we generalize these original results to describe a dual-gated bilayer graphene device.
AB - 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, 161403R (2006)] by a different method. Finally, we generalize these original results to describe a dual-gated bilayer graphene device.
KW - graphene
U2 - 10.1103/PhysRevB.82.197401
DO - 10.1103/PhysRevB.82.197401
M3 - Journal article
VL - 82
JO - Physical review B
JF - Physical review B
SN - 1550-235X
IS - 19
M1 - 197401
ER -