Topological nodal-line fermions in spin-orbit metal PbTaSe2

  title={Topological nodal-line fermions in spin-orbit metal PbTaSe2},
  author={G. Bian and T. Chang and R. Sankar and S. Xu and Hao Zheng and T. Neupert and Ching-Kai Chiu and S. Huang and G. Chang and I. Belopolski and D. S{\'a}nchez and M. Neupane and N. Alidoust and C. Liu and B. Wang and Chi-Cheng Lee and H. Jeng and Chenglong Zhang and Z. Yuan and Shuang Jia and A. Bansil and F. Chou and H. Lin and M Zahid Hasan},
  journal={Nature Communications},
  • G. Bian, T. Chang, +21 authors M Zahid Hasan
  • Published 2016
  • Medicine, Physics
  • Nature Communications
  • Topological semimetals can support one-dimensional Fermi lines or zero-dimensional Weyl points in momentum space, where the valence and conduction bands touch. While the degeneracy points in Weyl semimetals are robust against any perturbation that preserves translational symmetry, nodal lines require protection by additional crystalline symmetries such as mirror reflection. Here we report, based on a systematic theoretical study and a detailed experimental characterization, the existence of… CONTINUE READING
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