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Core-level spectra from bilayer graphene

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 نشر من قبل Bo Sernelius
 تاريخ النشر 2015
  مجال البحث فيزياء
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 تأليف Bo E. Sernelius




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We derive core-level spectra for doped free-standing bilayer graphene. Numerical results are presented for all nine combinations of the doping concentrations $10^{12}rm{cm}^{-2}$, $10^{13}rm{cm}^{-2}$, and $10^{14}rm{cm}^{-2}$ 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.



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