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Title: Bulk crystal growth and electronic characterization of the 3D Dirac semimetal Na{sub 3}Bi

High quality hexagon plate-like Na{sub 3}Bi 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 Na{sub 3}Bi. In transport measurements on Na{sub 3}Bi crystals, the linear magnetoresistance and Shubnikov-de Haas quantum oscillations are observed for the first time.
Authors:
; ;  [1] ; ; ; ; ; ; ; ; ; ; ;  [2]
  1. Department of Chemistry, Princeton University, Princeton, New Jersey 08542 (United States)
  2. Department of Physics, Princeton University, Princeton, New Jersey 08542 (United States)
Publication Date:
OSTI Identifier:
22415269
Resource Type:
Journal Article
Resource Relation:
Journal Name: APL materials; Journal Volume: 3; Journal Issue: 4; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BISMUTH ALLOYS; CRYSTAL GROWTH; CRYSTALS; DISPERSION RELATIONS; MAGNETORESISTANCE; OSCILLATIONS; PHOTOELECTRON SPECTROSCOPY; PLATES; SCANNING TUNNELING MICROSCOPY; SEMIMETALS; SHUBNIKOV-DE HAAS EFFECT; SODIUM BASE ALLOYS; SURFACES; TEMPERATURE DEPENDENCE; THREE-DIMENSIONAL LATTICES