Discovery of a Three-Dimensional Topological Dirac Semimetal, Na3Bi

• Published in: Science (American Association for the Advancement of Science) Vol. 343; no. 6173; pp. 864 - 867
• Main Authors: Liu, Z. K., Zhou, B., Zhang, Y., Wang, Z. J., Weng, H. M., Prabhakaran, D., Mo, S.-K., Shen, Z. X., Fang, Z., Dai, X., Hussain, Z., Chen, Y. L.
• Format: Journal Article
• Language: English
• Published: United States American Association for the Advancement of Science 21.02.2014; The American Association for the Advancement of Science
• Subjects: 3-D graphics; Binding energy; Doping; Electronic structure; Emissions; Fermions; Graphene; Materials science; Mathematical surfaces; Metalloids; momentum; phase transition; Photoelectric emission; Spectroscopy; Topological manifolds; Topology

Three-dimensional (3D) topological Dirac semimetals (TDSs) represent an unusual state of quantum matter that can be viewed as "3D graphene." In contrast to 2D Dirac fermions in graphene or on the surface of 3D topological insulators, TDSs possess 3D Dirac fermions in the bulk. By investiga...