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@ARTICLE{Niu:276427,
      author       = {Niu, Chengwang and Buhl, Patrick and Bihlmayer, Gustav and
                      Wortmann, Daniel and Blügel, Stefan and Mokrousov, Yuriy},
      title        = {{T}wo-{D}imensional {T}opological {C}rystalline {I}nsulator
                      and {T}opological {P}hase {T}ransition in {T}l{S}e and
                      {T}l{S} {M}onolayers},
      journal      = {Nano letters},
      volume       = {15},
      number       = {9},
      issn         = {1530-6992},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2015-06866},
      pages        = {6071 - 6075},
      year         = {2015},
      abstract     = {The properties that distinguish topological crystalline
                      insulator (TCI) and topological insulator (TI) rely on
                      crystalline symmetry and time-reversal symmetry,
                      respectively, which encodes different bulk and surface/edge
                      properties. Here, we predict theoretically that
                      electron-doped TlM (M = S and Se) (110) monolayers realize a
                      family of two-dimensional (2D) TCIs characterized by mirror
                      Chern number CM = −2. Remarkably, under uniaxial strain
                      (≈ $1\%),$ a topological phase transition between 2D TCI
                      and 2D TI is revealed with the calculated spin Chern number
                      CS = −1 for the 2D TI. Using spin-resolved edge states
                      analysis, we show different edge-state behaviors, especially
                      at the time reversal invariant points. Finally, a
                      TlBiSe2/NaCl quantum well is proposed to realize an undoped
                      2D TCI with inverted gap as large as 0.37 eV, indicating the
                      high possibility for room-temperature observation.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT},
      ddc          = {540},
      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) / 143 -
                      Controlling Configuration-Based Phenomena (POF3-143) /
                      Magnetic Anisotropy of Metallic Layered Systems and
                      Nanostructures $(jiff13_20131101)$},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143 /
                      $G:(DE-Juel1)jiff13_20131101$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000361252700063},
      pubmed       = {pmid:26241305},
      doi          = {10.1021/acs.nanolett.5b02299},
      url          = {https://juser.fz-juelich.de/record/276427},
}