Bulk crystal growth and electronic characterization of the 3D Dirac semimetal Na3Bi
Source abstract
Abstract
High quality hexagon plate-like Na3Bi crystals with large (001) plane surfaces were grown from a molten Na flux. The freshly cleaved crystals were analyzed by low temperature scanning tunneling microscopy and angle-resolved photoemission spectroscopy, allowing for the characterization of the three-dimensional (3D) Dirac semimetal (TDS) behavior and the observation of the topological surface states. Landau levels were observed, and the energy-momentum relations exhibited a linear dispersion relationship, characteristic of the 3D TDS nature of Na3Bi. In transport measurements on Na3Bi crystals, the linear magnetoresistance and Shubnikov-de Haas quantum oscillations are observed for the first time.
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Research context
OpenAlex topics: Topological Materials and Phenomena · Graphene research and applications · Advanced Physical and Chemical Molecular Interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Princeton University 1 Department of Chemistry, , Princeton, New Jersey 08542, USA
Princeton University 2 Department of Physics, , Princeton, New Jersey 08542, USA
Funding
U.S. Department of Energy · Army Research Office
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