Quantum oscillation and nontrivial transport in the Dirac Semimetal   Cd3As2 nanodevice
  Here we demonstrate the Shubnikov de Haas oscillation in high-quality Cd3As2 nanowires grown by a chemical vapor deposition approach. The dominant transport of topological Dirac fermions is evident by the nontrivial Berry phase in the Landau Fan diagram. The quantum oscillations rise at a small field of 2 Tesla and preserves till up to 100K, revealing a sizeable Landau level gap and a mobility of over 2000 cm2/V-1s-1. The angle-variable oscillations indicates the isotropy of the bulk Dirac transport. The large estimated mean free path appeals the one-dimensional transport of Dirac semimetals. 
Haiyang Pan, Kang Zhang, Zhongxia Wei, Bo Zhao, Jue Wang, Ming Gao, Li   Pi, Min Han, Fengqi Song, Xuefeng Wang, Baigeng Wan...
cond-mat.mes-hall