Correlation between the hybridization process and emergent ground states in URu2Si2-xPx

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).

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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