Pseudo field effects in type II Weyl semimetals: new probes for over tilted cones

ORAL

Abstract

We propose a probe for type II Weyl semimetals which determines the direction of the tilt. Building on the different phenomenology of the chiral Landau and pseudo-Landau levels in Weyl semimetals, we show how in a simple two Weyl cone model, the optical conductivity can be utilized to differentiate between the type I and II semimetals and pinpoint the direction of the tilt, and the field itself. For a larger number of nodes, a combination of the two fields can hint on the arrangement of cones as well.

*DS and RI are supported by the ISRAEL SCIENCE FOUNDATION (Grant No. 1790/18). TM acknowledges financial support by the Deutsche Forschungsgemeinschaft via the Emmy Noether Programme ME4844/1-1, the Collaborative Research Center SFB 1143, Project A04, and the Cluster of Excellence on Complexity and Topology in Quantum Matter ct.qmat (EXC 2147).

–

Presenters

  • Daniel Sabsovich

    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University

Authors

  • Daniel Sabsovich

    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University

  • Tobias P Meng

    • Tech Univ Dresden
    • Institute of Theoretical Physics, Technische Universitat Dresden

  • Dmitry I. Pikulin

    • Microsoft Quantum Redmond
    • Microsoft Quantum, Microsoft Corporation

  • Raquel Queiroz

    • Weizmann Institute of Science
    • Department of Physics and Astronomy, Weizmann Institute of Science
    • Department of Condensed Matter Physics, Weizmann Institute of Science

  • Roni Ilan

    • Tel Aviv University
    • Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University