Core-level spectra from bilayer graphene

• We derive core-level spectra for doped free-standing bilayer graphene. Numerical results are presented for all nine combinations of the doping concentrations 1012 cm-2; 1013 cm-2, and 1014 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 ωq-plane, and show how the dispersion curves of the collective modes are modified in the bilayer system.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

graphene

core-level spectra

bilayer

collective modes

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)