Observation of superconductivity induced by a point contact on 3D Dirac semimetal Cd3As2 crystals.

@article{Wang2016ObservationOS,
  title={Observation of superconductivity induced by a point contact on 3D Dirac semimetal Cd3As2 crystals.},
  author={He Wang and Huichao Wang and Haiwen Liu and Hong Lu and Wuhao Yang and Shuang Jia and Xiong-Jun Liu and X. C. Xie and Jian Wei and Jian Wang},
  journal={Nature materials},
  year={2016},
  volume={15 1},
  pages={
          38-42
        }
}
Three-dimensional (3D) Dirac semimetals, which possess 3D linear dispersion in the electronic structure as a bulk analogue of graphene, have lately generated widespread interest in both materials science and condensed matter physics. Recently, crystalline Cd3As2 has been proposed and proved to be a 3D Dirac semimetal that can survive in the atmosphere. Here, by using point contact spectroscopy measurements, we observe exotic superconductivity around the point contact region on the surface of… 
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