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@INPROCEEDINGS{Jin:825255,
      author       = {Jin, Fengping and Roldán, R. and Katsnelson, M. I. and
                      Yuan, S.},
      title        = {{S}creening and plasmons in pure and disordered single- and
                      bilayer black phosphorus},
      reportid     = {FZJ-2016-07726},
      year         = {2016},
      abstract     = {We study collective plasmon excitations and screening of
                      pure and disordered single- and bilayer black phosphorus
                      beyond the low energy continuum approximation. The dynamical
                      polarizability of phosphorene is computed using a
                      tight-binding model that properly accounts for the band
                      structure in a wide energy range. Electron-electron
                      interaction is considered within the Random Phase
                      Approximation. Damping of the lasmon modes due to different
                      kinds of disorder, such as resonant scatterers and
                      long-range disorder potentials, is analyzed. We further show
                      that an electric field applied perpendicular to bilayer
                      phosphorene can be used to tune the dispersion of the
                      plasmon modes. For sufficiently large electric field, the
                      bilayer BP enters in a topological phase with a
                      characteristic plasmon spectrum, which is gaped in the
                      armchair direction.},
      month         = {Sep},
      date          = {2016-09-04},
      organization  = {Condensed Matter in Groningen,
                       Groningen (The Netherlands), 4 Sep 2016
                       - 9 Sep 2016},
      subtyp        = {Other},
      cin          = {JSC},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511)},
      pid          = {G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/825255},
}