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Anomalous c-axis Transport Response of UTe2

ORAL · Invited

Abstract

We study the temperature dependence of electrical resistivity for currents directed along all crystallographic axes of the spin-triplet superconductor UTe2. We focus particularly on an accurate determination of the resistivity along the c-axis (ρc) by using transport geometries that allow extraction of two resistivities along with the primary axes directions. In contrast to the existence of the highly anisotropic band structure, our measurement of the absolute values of resistivities in all current directions reveals a surprisingly nearly isotropic transport behavior. The temperature dependence of ρc exhibits a peak associated with the temperature much lower than the onset of Kondo coherence observed in ρa and ρb, consistent with features in magnetotransport and magnetization that point to a magnetic origin.  A comparison to the temperature-dependent evolution of scattering observed in angle-resolved photoemission experiments also provides important insights into the underlying electronic structure necessary for building a microscopic model of UTe2.

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Publication: https://arxiv.org/abs/2101.03102

Presenters

  • Yun Suk Eo

    University of Maryland, College Park

Authors

  • Yun Suk Eo

    University of Maryland, College Park

  • Shouzheng Liu

    New York University

  • Shanta Saha

    Maryland Quantum Materials Center, University of Maryland, College Park, MD 20742, USA, University of Maryland, College Park

  • Hyunsoo Kim

    Texas Tech Univ

  • Sheng Ran

    Washington University, St. Louis

  • Jarryd Horn

    University of Maryland, College Park

  • Halyna Hodovanets

    Texas Tech Univ

  • John C Collini

    University of Maryland, College Park

  • Wesley T Fuhrman

    University of Maryland, College Park, Johns Hopkins University

  • Andriy H Nevidomskyy

    Rice Univ, Rice University, Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA, Department of Physics and Astronomy, Rice University, TX, USA, Department of Physics and Astronomy, Rice University, Department of Physics & Astronomy, Rice University

  • Jonathan D Denlinger

    Lawrence Berkeley National Laboratory, Lawrence Berkeley National Lab

  • Nicholas Butch

    National Institute of Standards and Tech, National Institute of Standards and Technology, Center for Neutron Research, National Institute of Standards and Technology

  • Michael S Fuhrer

    Monash University

  • L. Andrew A Wray

    New York University (NYU), New York University

  • Johnpierre Paglione

    University of Maryland, College Park, Maryland Quantum Materials Center, University of Maryland, College Park, MD 20742, USA, Univ of Maryland-College Park