Indexed by:Journal paper First Author:徐刚 Co-author:Simin Nie, Gang Xu, Fritz B Prinz, Shou-cheng Zhang Journal:Proceedings of the National Academy of Sciences Included Journals:SCI Discipline:Science First-Level Discipline:Physics Document Type:J Volume:114 Issue:40 Page Number:10596-10600 Date of Publication:2017-10-03 Abstract:Recognized as elementary particles in the standard model, Weyl fermions in condensed matter have received growing attention. However, most of the previously reported Weyl semimetals exhibit rather complicated electronic structures that, in turn, may have raised questions regarding the underlying physics. Here, we report promising topological phases that can be realized in specific honeycomb lattices, including ideal Weyl semimetal structures, 3D strong topological insulators, and nodal-line semimetal configurations. we highlight a semimetal featuring both Weyl nodes and nodal lines