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Massive Dirac Fermions Signal in Raman Spectrum of Graphene

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 نشر من قبل Kenichi Sasaki
 تاريخ النشر 2018
  مجال البحث فيزياء
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 تأليف Ken-ichi Sasaki




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Massless Dirac fermions in graphene can acquire a mass through different kinds of sublattice-symmetry-breaking perturbations, and there is a growing need to determine this mass using a conventional method. We describe how the mass caused by a staggered sublattice potential is determined using Raman spectroscopy and explain the mechanism in terms of the pseudospin polarization of massive Dirac fermions.

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