Quantum Transport Study of the Type-II Dirac Semimetal VAl<sub>3</sub>

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