Correlation between the hybridization process and emergent ground states in URu<sub>2</sub>Si<sub>2-x</sub>P<sub>x</sub>

ORAL

Abstract

The origin of the hidden order in URu2Si2 remains to be elucidated despite intensive investigations. Our previous study based on quasiparticle scattering spectroscopy (QPS) showed that a hybridization gap opens up well above the hidden order transition temperature, indicating that it is not responsible for the hidden order transition [1]. This is naturally understood by considering the hybridization process as a generic mechanism for emergent heavy fermi liquids in Kondo lattice systems. Then, how different is it in a system where a quantum critical parameter is tuned to result into different ground states? To address this question, we extend our QPS study into URu2Si2-xPx, which has recently been found to exhibit transitions into no-ordered and antiferromagnetic phases with increasing phosphorous content [2]. We will present conductance spectra obtained from this system spanning a wide phase space and discuss the implications of our results. [1] W. K. Park et al., Phys. Rev. Lett. 108, 246403 (2012); [2] A. Gallagher et al., Nature Commun. 7, 10712 (2016).

*SZ is supported by the CES, a DOE EFRC under Award DE-AC0298CH1088. WKP and LHG by the NSF DMR 17-04712. RB by the NSF DMR 11-57490. PT, EDB, FR, JDT are supported by the DOE, Office of BES, Division of MSE.

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Presenters

  • Shengzhi Zhang

    • Florida State Univ

Authors

  • Shengzhi Zhang

    • Florida State Univ

  • Paul Tobash

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory

  • Eric Bauer

    • MPA-CMMS, Los Alamos National Laboratory
    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory
    • Los Alamos National Lab
    • Condensed Matter and Magnet Science Group, Los Alamos National Laboratory

  • Filip Ronning

    • MPA-CMMS, Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • Los Alamos National Laboratory
    • Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory
    • Condensed Matter and Magnet Science Group, Los Alamos National Laboratory

  • Joe Thompson

    • MPA-CMMS, Los Alamos National Laboratory
    • Los Alamos National Laboratory
    • Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • Condensed Matter and Magnet Science Group, Los Alamos National Laboratory

  • Greta Chappell

    • Florida State Univ

  • Ryan Baumbach

    • National High Magnetic Field Laboratory, Florida State University
    • National High Magnetic Field Lab, Florida State University
    • National High Magnetic Field Laboratory
    • NHMFL
    • National High Magnetic Field Laboratory/Florida State University
    • Natl High Magnetic Field Lab
    • NHMFL at Florida State University

  • Laura Greene

    • Florida State Univ
    • National High Magnetic Field Laboratory, Florida State University
    • National High Magnetic Field Laboratory

  • Wan Kyu Park

    • National High Magnetic Field Laboratory, Florida State University
    • National High Magnetic Field Laboratory