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Title:Oral: Exploring Topology of Fermi Arcs in t-PtBi2 Using High Resolution Angle Resolved Photoemission Spectroscopy

ORAL

Abstract

Trigonal phase PtBi2 is a Type-I Weyl semimetal which was proposed to have topologically protected surface states. Here we study the electronic structure of this material using high resolution angle resolved photoemission spectroscopy and density functional theory calculations. We demonstrate that some of the surface states indeed form Fermi arcs, a disconnected portion of the Fermi surface. We did not find any signatures of a superconducting gap along the Fermi arcs, in contradiction to previous reports.

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Publication: Observation of Fermi Arcs and Superconductivity in t-PtBi2 Using High Resolution Angle Resolved Photoemission Spectroscopy

Presenters

  • Evan O'Leary

    Iowa State University

Authors

  • Evan O'Leary

    Iowa State University

  • Yevhen Kushnirenko

    Ames National Laboratory

  • Zhuoqi Li

    Ames National Laboratory

  • Lin-Lin Wang

    Ames National Laboratory and Iowa State University, Ames National Laboratory

  • Benjamin Schrunk

    Ames National Laboratory

  • Andrew Eaton

    Iowa State University

  • Paul C Canfield

    Iowa State University, Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University, Ames National Laboratory and Iowa State University

  • Adam Kaminski

    Iowa State University