Anisotropic high-field magnetoresistance of microstructured CeIrIn5

ORAL

Abstract

We report magnetoresistance up to 65T on high quality, focused ion beam (FIB)-fabricated microstructures of CeIrIn5, a strongly correlated metal known for its heavy-fermion superconducting state at Tc ~ 0.4K. We probe the anisotropic magnetotransport in microstructured samples with well-defined geometries, and we simultaneously measure resistance along the [100] and [001] directions with respect to a number of applied filed orientations. We observe a jump-like increase of the magnetoresistance in high fields above 40T for a narrow range of field angles. The transport anomaly is reminiscent of recent transport observations in CeRhIn5. Yet, unlike CeRhIn5, CeIrIn5 does not order anti-ferromagnetically; thus, our results point to origins other than metamagnetism.

–

Presenters

  • Kent Shirer

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

Authors

  • Kent Shirer

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

  • Maja Bachmann

    Max Planck Institute for Chemical Physics of Solids

  • Laurel Winter

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

  • 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

  • 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

  • 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

  • Philip Moll

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