Polarizability and Screening in Chiral Multilayer Graphene

Abstract

We calculate the static polarizability of multilayer graphene and study the effect of stacking arrangement, carrier density, and onsite energy difference on graphene screening properties. At low densities, the energy spectrum of multilayer graphene is described by a set of chiral two-dimensional electron systems and the associated chiral nature determines the screening properties of multilayer graphene showing very different behavior depending on whether the chirality index is even or odd. As density increases, the energy spectrum follows that of the monolayer graphene and thus the polarizability approaches that of monolayer graphene. The qualitative dependence of graphene polarizability on chirality and layering indicates the possibility of distinct graphene quantum phases as a function of the chirality index.

5 pages, 4 figures

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Cited by in corpus (11)

• Low frequency optical conductivity in graphene and in other scale-invariant two-band systems
• Screening and collective modes in gapped bilayer graphene
• Multicomponent screening and superfluidity in gapped electron-hole double bilayer graphene with realistic bands
• Effects of doping and bias voltage on the screening in AAA-stacked trilayer graphene
• Gap generation in ABC-stacked multilayer graphene: screening vs band flattening
• Ferromagnetism in chiral multilayer 2D semimetals
• Screening in multilayer graphene
• Transport properties of multilayer graphene
• Theory of Conductivity of Chiral Particles
• Quasiparticle renormalization in ABC graphene trilayers
• Dynamical polarization in ABC-stacked multilayer graphene in a magnetic field