Isotropic Giant Magnetoresistance in URhIn5

ORAL

Abstract

We will show results of the resistivity anisotropy in focused ion beam (FIB)-fabricated microstructures of URhIn5 and compare them to CeRhIn5. Both systems order antiferromagnetically (AFM) at 94 K and 3.8K K , respectively. Marked differences are found in their response to magnetic field, despite their structural and electronical similarities. In CeRhIn5, the AFM order leads to an increase in the ratio of in-plane to out-of-plane resistivity with a modulation of the angle-dependent magnetoresistance. In contrast, the onset of AFM order in URhIn5 has no effect on the anisotropy of the system, but leads to a giant magnetoresistance (GMR), resembling semi-metals like Bi1 and WTe22, rather than other 115-heavy fermion systems. By performing detailed angle-dependent measurements of the magnetoresistance in the U-based system, we can show that the GMR originates mainly from orbital magnetoresistance, making it unique among f-electron containing system.

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Presenters

  • Carsten Putzke

    École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Lausanne, Switzerland

Authors

  • Carsten Putzke

    École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Lausanne, Switzerland

  • Eteri Svanidze

    Max Planck Institute for Chemical Physics of Solids, Dresden, Germany, Max Planck Institute for Chemical Physics of Solids

  • Maja Bachmann

    Max Planck Institute for Chemical Physics of Solids, Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

  • Markus Koenig

    Max-Planck-Institute for Chemical Physics of Solids, Max Planck Institute for Chemical Physics of Solids, Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

  • Kent Shirer

    Max Planck Institute for Chemical Physics of Solids, Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

  • Jonas Diaz

    École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Lausanne, Switzerland

  • Tobias Foerster

    Highfield Magnetlaboratory Dresden, Helmholtz-Center Dresden-Rossendorf, Dresden, Germany

  • Andreas Leithe-Jasper

    MPI CPfS, Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

  • Eric Bauer

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA, Los Alamos National Laboratory, MPA-CMMS, Los Alamos National Laboratory, Los Alamos, USA, MPA-CMMS, Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico, USA, Los Alamos National Labs

  • Filip Ronning

    Los Alamos National Laboratory, Los Alamos, NM 87545, USA, Los Alamos National Laboratory, MPA-CMMS, Los Alamos National Laboratory, Los Alamos, USA, MPA-CMMS, Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico, USA, Los Alamos National Labs

  • Yuri Grin

    MPI CPfS, Max Planck Institute for Chemical Physics of Solids, Dresden, Germany, Max Planck Institute for Chemical Physics of Solids

  • Philip Moll

    Ecole polytechnique federale de Lausanne, Swiss Federal Institute of Technology in Lausanne, École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Lausanne, Switzerland, Institute of Materials, Ecole Polytechnique Federale de Lausanne, Ecole Polytechnique Federale de Lausanne