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@ARTICLE{Schirone:190151,
      author       = {Schirone, S. and Krasovskii, E. E. and Bihlmayer, G. and
                      Piquerel, R. and Gambardella, P. and Mugarza, A.},
      title        = {{S}pin-{F}lip and {E}lement-{S}ensitive {E}lectron
                      {S}cattering in the {B}i{A}g $_{2}$ {S}urface {A}lloy},
      journal      = {Physical review letters},
      volume       = {114},
      number       = {16},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-03082},
      pages        = {166801},
      year         = {2015},
      abstract     = {Heavy metal surface alloys represent model systems to study
                      the correlation between electron scattering, spin-orbit
                      interaction, and atomic structure. Here, we investigate the
                      electron scattering from the atomic steps of monolayer BiAg2
                      on Ag(111) using quasiparticle interference measurements and
                      density functional theory. We find that intraband
                      transitions between states of opposite spin projection can
                      occur via a spin-flip backward scattering mechanism driven
                      by the spin-orbit interaction. The spin-flip scattering
                      amplitude depends on the chemical composition of the steps,
                      leading to total confinement for pure Bi step edges, and
                      considerable leakage for mixed Bi-Ag step edges.
                      Additionally, the different localization of the occupied and
                      unoccupied surface bands at Ag and Bi sites leads to a
                      spatial shift of the scattering potential barrier at pure Bi
                      step edges.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT},
      ddc          = {550},
      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:000353289300011},
      doi          = {10.1103/PhysRevLett.114.166801},
      url          = {https://juser.fz-juelich.de/record/190151},
}