Sharp Orientation-dependent Quantum Oscillations in HoPtBi

ORAL

Abstract

Rare-earth platinum and palladium-bismuthides have been host to rich phenomenon in the search for topological states and Weyl semimetals. YPtBi in particular is host to a spin-split fermi surface which hosts a spin-3/2 superconducting state. In this study we expand this investigation to HoPtBi, a magnetic analog to YPtBi with an AFM ground state and a paramagnetic state above 1.2K. We present orientation-dependent measurements of quantum oscillations in HoPtBi and find a strong orientation dependence near the crystallographic [110] direction very similar to, but phenomenologically distinct from the behavior of YPtBi.

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Presenters

  • Connor Roncaioli

    • University of Maryland, College Park

Authors

  • Connor Roncaioli

    • University of Maryland, College Park

  • Prathum Saraf

    • University of Maryland, College Park

  • Yun Suk Eo

    • Department of Physics, University of Maryland, College Park
    • University of Maryland, College Park

  • Hyunsoo Kim

    • University of Maryland, College Park
    • Department of Physics, University of Maryland, College Park

  • Johnpierre Paglione

    • Physics, University of Maryland
    • University of Maryland, College Park
    • Center for Nanophysics and Advanced Materials, University of Maryland College Park
    • Center for Nanophysics and Advance Materials, University of Maryland, College Park, MD
    • University of Maryland, College Park & NIST
    • Department of Physics, University of Maryland, College Park
    • University of Maryland
    • University of Maryland - College Park