Non-trivial Berry phase in the Cd3As2 3D Dirac semimetal Auteur(s): Desrat W., Consejo C., Teppe F., Contreras S., Marcinkiewicz M., Knap W., Nateprov A., Arushanov E.
Conference: EDISON 19 (Salamanca, ES, 2015-06-29) Ref HAL: hal-01932656_v1 DOI: 10.1088/1742-6596/647/1/012064 WoS: 000366236800064 Exporter : BibTex | endNote 8 Citations Résumé: We present magnetotransport measurements performed on Cd3As2 samples. Our results confirm the existence of 3D Dirac fermions in this material with a π Berry phase. A metal-insulator transition driven by the magnetic field is also observed for B < 1 T. Finally the in situ rotation of the sample reveals that the Fermi surface is a weakly anisotropic ellipsoid. |