Interlayer vacancy defects in AA-stacked bilayer graphene: density functional theory predictions
نویسندگان
چکیده
منابع مشابه
Instabilities of the AA-stacked graphene bilayer.
Tight-binding calculations predict that the AA-stacked bilayer graphene has one electron and one hole conducting band, and that the Fermi surfaces of these bands coincide. We demonstrate that as a result of this degeneracy, the bilayer becomes unstable with respect to a set of spontaneous symmetry violations. Which of the symmetries is broken depends on the microscopic details of the system. Fo...
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The screening properties and collective excitations (plasmons) in AA-stacked bilayer graphene are studied within the random phase approximation. Whereas long-lived plasmons in single-layer graphene and in AB-stacked bilayer graphene can exist only in doped samples, we find that coherent plasmons can disperse in AA-stacked bilayer graphene even in the absence of doping. Moreover, we show that th...
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A. O. Sboychakov,1,2 A. L. Rakhmanov,1,2,3 A. V. Rozhkov,1,2 and Franco Nori1,4 1Advanced Science Institute, RIKEN, Wako-shi, Saitama, 351-0198, Japan 2Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, 125412 Moscow, Russia 3Moscow Institute for Physics and Technology (State University), 141700 Moscow Region, Russia 4Department of Physics, University of Michiga...
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We calculate the electronic band structure of ABA-stacked trilayer graphene in the presence of external gates, using a self-consistent Hartree approximation to take account of screening. In the absence of a gate potential, there are separate pairs of linear and parabolic bands at low energy. A gate field perpendicular to the layers breaks mirror reflection symmetry with respect to the central l...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2017
ISSN: 0953-8984,1361-648X
DOI: 10.1088/1361-648x/aa5f93