Core-level spectra from bilayer graphene

Abstract

We derive core-level spectra for doped free-standing bilayer graphene. Numerical results are presented for all nine combinations of the doping concentrations $10^{12}{\mathrm{cm}}^{-2}$, $10^{13}{\mathrm{cm}}^{-2}$, and $10^{14}{\mathrm{cm}}^{-2}$ in the two graphene sheets and we compare the results to the reference spectra for monolayer graphene. We furthermore discuss the spectrum of single-particle inter-band and intra-band excitations in the $\omega q$-plane, and show how the dispersion curves of the collective modes are modified in the bilayer system.

6 pages, 6 figures

References in corpus (1)

• Core-level spectra from graphene

Cited by in corpus (1)

• Freestanding n-Doped Graphene via Intercalation of Calcium and Magnesium into the Buffer Layer - SiC(0001) Interface