Effect of electronic correlations in the electronic structure of MoTe2

ORAL

Abstract

MoTe2 has been recently predicted to be a type-II Weyl material by DFT calculations and ARPES experiments seem to agree with the DFT predictions. However, quantum oscillation experiments (QOE) disagree with the DFT calculations; the most noteworthy discrepancy is the absence of large hole pocket in the QOE which is predicted to form a Weyl point with the electron pocket by the DFT calculations. This raises doubt about the existence of Weyl physics in this material. In an attempt to understand and resolve the discrepancy between the QOE and the DFT calculations and ARPES measurements, we investigated the role of electronic correlations within the GGA+U and GW approximations.

Presenters

  • Niraj Aryal

    Natl. High Magnetic Field Lab, Florida State University, Natl High Magnetic Field Lab, National High Magnetic Field Laboratory, Florida State Univ

Authors

  • Niraj Aryal

    Natl. High Magnetic Field Lab, Florida State University, Natl High Magnetic Field Lab, National High Magnetic Field Laboratory, Florida State Univ

  • Efstratios Manousakis

    Florida State Univ, Department of Physics and National High Magnetic Field Laboratory, Florida State Unversity, National High Magnetic Field Laboratory, Physics, Florida State Univ, Department of Physics and National High Magnetic Field Laboratory, Florida State University, University of Athens, Panepistimioupolis, Zografos, Athens, Greece; Florida State University, Tallahassee, FL, United States; National High Magnetic Field Laboratory