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