Electrical and Magneto Transport Properties in Weyl Semimetal MoTe2

ORAL

Abstract

Molybdenum ditelluride MoTe2, a type II Weyl semimetal, has attracted intense interest due to novel properties such as large magnetoresistance, quantum spin Hall effect and massless carriers. Here we report on electrical and magneto transport studies of exfoliated multilayer MoTe2. Weak antilocalization is observed at low magnetic fields due to strong spin-orbit coupling. We also investigate layer dependent magnetoresistance at various temperatures. A back-gate voltage is applied to change the carrier density and Fermi level. It is shown such electronic properties can be effectively tuned by gate voltage.

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Presenters

  • Lei Wang

    • Yale Univ
    • Physics & Astronomy, University of South Carolina
    • Materials Characterization Core, Yale University West Campus

Authors

  • Lei Wang

    • Yale Univ
    • Physics & Astronomy, University of South Carolina
    • Materials Characterization Core, Yale University West Campus

  • Joshua Pondick

    • Energy Sciences Institute, Yale University West Campus

  • John Woods

    • Energy Sciences Institute, Yale University West Campus

  • Pengzi Liu

    • Energy Sciences Institute, Yale University West Campus
    • Yale University

  • Milad Yarali

    • Energy Sciences Institute, Yale University West Campus

  • Sajad Yazdani

    • Energy Sciences Institute, Yale University West Campus

  • Min Li

    • Materials Characterization Core, Yale University West Campus

  • Judy Cha

    • Yale University
    • Energy Sciences Institute, Yale University West Campus
    • Stanford University