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@ARTICLE{Liu:885982,
      author       = {Liu, Shuyuan and Wang, Chongze and Liu, Liangliang and
                      Choi, Jin-Ho and Kim, Hyun-Jung and Jia, Yu and Park, Chul
                      Hong and Cho, Jun-Hyung},
      title        = {{F}erromagnetic {W}eyl {F}ermions in {T}wo-{D}imensional
                      {L}ayered {E}lectride {G}d2{C}},
      journal      = {Physical review letters},
      volume       = {125},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2020-04209},
      pages        = {187203},
      year         = {2020},
      abstract     = {Recently, two-dimensional layered electrides have emerged
                      as a new class of materials which possess anionic electrons
                      in the interstitial spaces between cationic layers. Here,
                      based on first-principles calculations, we discover a
                      time-reversal-symmetry-breaking Weyl semimetal phase in a
                      unique two-dimensional layered ferromagnetic (FM) electride
                      Gd2C. It is revealed that the crystal field mixes the
                      interstitial electron states and Gd−5d orbitals near the
                      Fermi energy to form band inversions. Meanwhile, the FM
                      order induces two spinful Weyl nodal lines (WNLs), which are
                      converted into multiple pairs of Weyl nodes through
                      spin-orbit coupling. Further, we not only identify Fermi-arc
                      surface states connecting the Weyl nodes but also predict a
                      large intrinsic anomalous Hall conductivity due to the Berry
                      curvature produced by the gapped WNLs. Our findings
                      demonstrate the existence of Weyl fermions in the
                      room-temperature FM electride Gd2C, therefore offering a new
                      platform to investigate the intriguing interplay between
                      electride materials and magnetic Weyl physics.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142) / 143 -
                      Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:33196220},
      UT           = {WOS:000583031900003},
      doi          = {10.1103/PhysRevLett.125.187203},
      url          = {https://juser.fz-juelich.de/record/885982},
}