Topological Excitations of Hidden Order in URu2Si2 Under Extreme Electric Fields

ORAL

Abstract

The macroscopic properties of quantum materials are heavily influenced by collective modes, however there are only a few examples where the coherence of the ground-state wavefunction directly contributes to the conductivity. Notable examples include the collective sliding of charge density waves when subjected to high electric fields and the macroscopic phase coherence that enables superconductors to carry dissipationless currents. In the long-studied heavy fermion URu2Si2 we observe such a connection between the quantum and macroscopic worlds in the low temperature hidden order state. Under large voltage bias non-linear contributions to the conductivity are observed that are directly analogous to the manifestation of phase slip centers in one-dimensional superconductors. LA-UR-17-30109

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Presenters

  • Laurel Winter

    Los Alamos National Laboratory, Los Alamos Natl Lab, LANL/NHMFL, NHMFL-PFF, Los Alamos National Laboratory, National High Magnetic Field Laboratory, LANL

Authors

  • Laurel Winter

    Los Alamos National Laboratory, Los Alamos Natl Lab, LANL/NHMFL, NHMFL-PFF, Los Alamos National Laboratory, National High Magnetic Field Laboratory, LANL

  • Arkady Shekhter

    Los Alamos National Laboratory, National High Magnetic Field Laboratory, NHMFL/FSU, DC Facility, Nationall High Magnetic Field Laboratory

  • Brad Ramshaw

    Cornell University, Los Alamos National Labs, National High Magnetic Field Laboratory, Department of Physics, Cornell University, Laboratory of Atomic and Solid State Physics, Cornell University, Los Alamos National Laboratory, Laboratory for Atomic and Solid state Physics, Cornell University

  • Neil Harrison

    National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos Natl Lab, National High Magnetic Field Laboratory, LANL/NHMFL

  • 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

  • Philip Moll

    Max Planck Institute for Chemical Physics of Solids, Max Planck Inst

  • Ross McDonald

    Los Alamos National Laboratory, National High Magnetic Field Laboratory, Pulsed Field Facility, Los Alamos National Lab, Los Alamos Natl Lab, LANL/NHMFL, NHMFL-PFF, Los Alamos National Laboratory, National High Magnetic Field Laboratory, LANL