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@ARTICLE{Marchenko:276429,
      author       = {Marchenko, D. and Varykhalov, A. and Sánchez-Barriga, J.
                      and Rader, O. and Carbone, C. and Bihlmayer, G.},
      title        = {{H}ighly spin-polarized {D}irac fermions at the
                      graphene/{C}o interface},
      journal      = {Physical review / B},
      volume       = {91},
      number       = {23},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-06868},
      pages        = {235431},
      year         = {2015},
      abstract     = {The interface of graphene with ferromagnets is highly
                      relevant for spintronics, because graphene on Co(0001) shows
                      a largely intact Dirac cone and strong hybridization with Co
                      3d states breaking the sublattice symmetry that had been
                      considered mutually exclusive. Here we show by spin- and
                      angle-resolved photoemission that the Dirac cone and Dirac
                      point are also highly spin polarized $(∼−25\%),$ which
                      reinforces the puzzling issue of a strong graphene-substrate
                      interaction. The problem is solved by our ab initio
                      calculations which show that (i) the upper and lower halves
                      of the Dirac cone belong to different sublattices and (ii)
                      one half is spin polarized by spin-dependent hybridization
                      because it is situated at the edge of a minority-spin band
                      gap of the Co substrate.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142)},
      pid          = {G:(DE-HGF)POF3-142},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000356474000006},
      doi          = {10.1103/PhysRevB.91.235431},
      url          = {https://juser.fz-juelich.de/record/276429},
}