A local probe study of magnetism in RuO<sub>2</sub> by nuclear resonance scattering

ORAL

Abstract

Magnetic properties of ruthenium dioxide are of interest due to predicted altermagnetic behavior of this rutile-structure material. Whereas neutron diffraction provides indications for an antiferromagnetic ground state, muon spin rotation indicates a much lower upper limit for a possible magnetic moment. Here, we report on new analysis of ruthenium-99 Mossbauer spectroscopy and nuclear forward scattering of synchrotron radiation and the implications for magnetism. This data will also be complemented with inelastic neutron scattering measurements and lattice dynamics calculations.

Fritz Wagner, Lorenzo Stievano, Dimitrios Bessas, and John Budai are acknowledge for initial data acquisition of the data we reanalyzed here.

*Research was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. A portion of this research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory, at ARCS, and used synchrotron radiation infrastructure at the European Synchrotron Radiation Facility, at ID18.

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Presenters

  • Raphael Pierre Hermann

    • Oak Ridge National Laboratory

Authors

  • Raphael Pierre Hermann

    • Oak Ridge National Laboratory

  • George Yumnam

    • Oak Ridge National Laboratory

  • Ilya Sergueev

    • DESY

  • Lars Bocklage

    • DESY

  • Parul R Raghuvanshi

    • Oak Ridge National Laboratory

  • Lucas Lindsay

    • Oak Ridge National Laboratory

  • David Steven Parker

    • Oak Ridge National Laboratory

  • Valentino R Cooper

    • Oak Ridge National Laboratory

  • Michael E Manley

    • Oak Ridge National Laboratory

  • Shaofei Wang

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory