Anomalous angle-dependent transport and superconducting properties in topological semimetal YPtBi

ORAL

Abstract

Half-Heusler RPtBi compounds (R=rare earth) are topological semimetals, some of which undergo a superconducting phase transition, and therefore they harbor topological surface states and Majorana surface fluid in the superconducting state. While recent ARPES measurements ubiquitously reported the existence of surface states in the RTBi systems, their evidence by other experimental techniques remains elusive. In this talk, we discuss magneto-transport properties in topological semimetal YPtBi as a function of an angle to shed light on the various surface states in both normal and superconducting states. We will also discuss the angle-dependent upper critical field determined by transport measurements in various rotation configurations.

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Presenters

  • Hyunsoo Kim

    • Missouri University of Science & Technology
    • Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
    • Missouri S and T

Authors

  • Hyunsoo Kim

    • Missouri University of Science & Technology
    • Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
    • Missouri S and T

  • Tristin E Metz

    • Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
    • University of Maryland, College Park

  • Halyna Hodovanets

    • Missouri University of Science and Technology
    • Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA

  • Yun Suk Eo

    • University of Maryland, College Park

  • Johnpierre Paglione

    • University of Maryland, College Park
    • Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA