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@ARTICLE{Jeong:850952,
      author       = {Jeong, Sang-Min and Yi, Seho and Kim, Hyun-Jung and
                      Bihlmayer, Gustav and Cho, Jun-Hyung},
      title        = {{C}ompeting edge structures of {S}b and {B}i bilayers
                      generated by trivial and nontrivial band topologies},
      journal      = {Physical review / B},
      volume       = {98},
      number       = {7},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2018-04683},
      pages        = {075402},
      year         = {2018},
      abstract     = {One-dimensional (1D) edge states formed at the boundaries
                      of 2D normal and topological insulators have shown
                      intriguing quantum phases such as charge density wave and
                      quantum spin Hall effect. Based on first-principles
                      density-functional theory calculations including spin-orbit
                      coupling (SOC), we show that the edge states of zigzag
                      Sb(111) and Bi(111) nanoribbons drastically change the
                      stability of their edge structures. For zigzag Sb(111)
                      nanoribbon, the Peierls-distorted or reconstructed edge
                      structure is stabilized by a band-gap opening. However, for
                      zigzag Bi(111) nanoribbons, such insulating structures are
                      destabilized due to the presence of topologically protected
                      gapless edge states, resulting in the stabilization of a
                      metallic, shear-distorted edge structure. We also show that
                      the edge states of the Bi(111) nanoribbon exhibit a larger
                      Rashba-type spin splitting at the boundary of Brillouin zone
                      compared to those of the Sb(111) nanoribbon. Interestingly,
                      the spin textures of edge states in the Peierls-distorted Sb
                      edge structure and the shear-distorted Bi edge structure
                      have all three spin components perpendicular and parallel to
                      the edges due to their broken mirror-plane symmetry. The
                      present findings demonstrate that the topologically trivial
                      and nontrivial edge states play crucial roles in determining
                      the edge structures of normal and topological insulators.},
      cin          = {PGI-1 / IAS-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142)},
      pid          = {G:(DE-HGF)POF3-142},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000440716700005},
      doi          = {10.1103/PhysRevB.98.075402},
      url          = {https://juser.fz-juelich.de/record/850952},
}