Thermal expansion measurements of CeRhIn5 at extremes

ORAL

Abstract

The heavy-fermion antiferromagnet CeRhIn5 exhibits remarkable behavior when subjected to either high magnetic fields or high applied pressures. From the superconducting dome around a putative unconventional quantum critical point at 2.3 GPa to the recently discovered XY nematic phase at 28 T, this material hosts important open questions. In this talk, we will discuss the properties of CeRhIn5 at these extremes via thermal expansion and magnetostriction measurements. We use optical fibers containing fiber Bragg grating (FBG) sensors to measure the strain in millimiter-sized single crystals subjected to DC fields to 45 T. We also describe an FBG optical apparatus for measuring thermal expansion under applied hydrostatic pressures to 2.5 GPa.

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Presenters

  • Priscila Rosa

    Los Alamos National Laboratory, Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory, Condensed Matter and Magnet Science Group, Los Alamos National Laboratory

Authors

  • Priscila Rosa

    Los Alamos National Laboratory, Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory, Condensed Matter and Magnet Science Group, Los Alamos National Laboratory

  • Sean Thomas

    Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory, Los Alamos National Laboratory, Condensed Matter and Magnet Science Group, Los Alamos National Laboratory

  • Fedor Balakirev

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

  • Jonathan Betts

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

  • Soonbeom Seo

    Condensed Matter and Magnetic Science Group, Los Alamos National Laboratory, 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

  • 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

  • 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

  • Marcelo Jaime

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