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.
Original language | English (US) |
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Article number | 041504 |
Journal | APL Materials |
Volume | 3 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1 2015 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Engineering(all)