Scanning tunneling spectroscopy studies of the topological states in the Dirac metal Hf2Te2P

ORAL

Abstract

Recent angle-resolved photoemission spectroscopy experiments and theoretical calculations indicate the existence of multiple Dirac states in the topological material Hf2Te2P [1]. In this study we use scanning tunneling spectroscopy (STS) to measure the electronic band structure of the material. Using STS as a direct probe of the real-space local density of states, we identify quasiparticle interference patterns that allow us to measure the topological surface states. The results will be discussed in the context of density functional theory calculations that predict multiple topological states below and above the Fermi energy.

[1]: Hosen et al. Distinct multiple fermionic states in a single topological metal Hf2Te2P. Nat. Commun. 9-3002, 2018.

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Presenters

  • Timothy Boyle

    University of California, Davis

Authors

  • Timothy Boyle

    University of California, Davis

  • Antonio Rossi

    University of California, Davis, University of california, Davis

  • Peter Carlson

    University of California, Davis

  • Moira K Miller

    University of Washington, University of California, Davis

  • Jingtai Zhao

    University of California, Davis

  • Morgan Walker

    University of California, Davis

  • Valentin Taufour

    University of California, Davis

  • Inna Vishik

    University of California, Davis, University of california, Davis, Physics, University of California, Davis

  • Eduardo H Da Silva Neto

    Physics, Univ of California - Davis, Stuart Blussom Quantum Matter Institute, University of British Columbia, University of California, Davis, Department of Physics, University of California Davis