Tight Binding Study of Multilayer Graphene With Arbitrary Stacking
POSTER
Abstract
It is well understood that the electronic properties of a crystal are greatly dependent on the band
structure at the Fermi level. The Dirac cones of graphene provide a basis for which much research
has been done in order to tune and analyze the electronic properties of the system at its Fermi level.
Traditionally, the semiconductor technique of doping has shown to be able to shift the Fermi level
away from the Dirac cones. We intend to do this without introducing any impurities but instead
through arbitrary stacking. We provide an analytical solution for finding the nonzero momentum
magnitudes that give energies at the Fermi level for arbitrarily stacked graphene, which introduce
rings around the Dirac points at the Fermi level, similar to semiconductor doping. Moreover, we
provide an analysis of inducing flat bands in an arbitrary stack, which provides consequences for
superconductivity.
structure at the Fermi level. The Dirac cones of graphene provide a basis for which much research
has been done in order to tune and analyze the electronic properties of the system at its Fermi level.
Traditionally, the semiconductor technique of doping has shown to be able to shift the Fermi level
away from the Dirac cones. We intend to do this without introducing any impurities but instead
through arbitrary stacking. We provide an analytical solution for finding the nonzero momentum
magnitudes that give energies at the Fermi level for arbitrarily stacked graphene, which introduce
rings around the Dirac points at the Fermi level, similar to semiconductor doping. Moreover, we
provide an analysis of inducing flat bands in an arbitrary stack, which provides consequences for
superconductivity.
Presenters
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Fred Sun
BASIS Independent Silicon Valley
Authors
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Fred Sun
BASIS Independent Silicon Valley
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Jia-An Yan
Towson Uninversity