Quantum Transport Study of the Type-II Dirac Semimetal VAl3

POSTER

Abstract

The transition-metal icosagenides VAl3 was predicted to be a Lorentz-violating type-II Dirac semimetal. We report the quantum transport study of VAl3 single crystals in magnetic fields up to 38 T. The Shubnikov-de Hass (SdH) oscillations of the longitudinal resistance are clearly observed at low temperatures. By analyzing the SdH oscillations, we obtain the Fermi surface area and compare it with the band structure calculations. We further discuss its topological property.

Presenters

  • Linshu Wang

    Fudan Univ

Authors

  • Linshu Wang

    Fudan Univ

  • Yeyu Huang

    Fudan Univ

  • Yunjie Yu

    Fudan Univ, State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Fudan University

  • Jiamin Ni

    Fudan Univ

  • Chuanying Xi

    High Magnetic Field Laboratory, Chinese Academy of Sciences

  • Li Pi

    High Magnetic Field Laboratory, Chinese Academy of Sciences

  • TayRong chang

    National TsingHua Univ

  • ChinShan Lue

    Natl Synchrotron Rad Res Ctr, National ChengKung Univ

  • Shiyan Li

    University of Sherbrooke, Fudan Univ, State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, State Key Laboratory of Surface Physics and Laboratory of Advanced Materials, Department of Physics, Fudan University, Fudan University