Electronic, magnetic and thermodynamic properties of the Kagome layer metal FeSn

ORAL

Abstract

FeSn is an itinerant antiferromagnet composed of metallic Kagome layers. FeSn single crystals are investigated using x-ray and neutron scattering, magnetic susceptibility and magnetization, heat capacity, resistivity, Hall, Seebeck, thermal expansion, thermal conductivity measurements and density functional theory. In spite of the quasi 2D Kagome layers with Dirac nodal lines along the K-H directions in the magnetic Brillouin zone about 0.3 eV below the Fermi energy, the measured properties strongly suggest that the overall electronic structure is 3D. The magnetism, however, is predicted to be highly 2D with Jin-plane/Jout-of-plane ≈ 10. The impact of Dirac nodes on the physics on this material will be discussed.

*Research supported by the DOE Office of Science, Basic Energy Sciences, Materials Science and Engineering Division.

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Presenters

  • Brian Sales

    • Oak Ridge National Lab

Authors

  • Brian Sales

    • Oak Ridge National Lab

  • Jiaqiang Yan

    • Materials Science and Engineering, The University of Tennessee
    • Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Lab
    • Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

  • William R Meier

    • Oak Ridge National Lab

  • Qiang Zheng

    • Oak Ridge National Lab

  • Andrew D Christianson

    • Materials Science & Technology Division, Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Materials Science and Technology Division, Oak Ridge National Lab
    • Materials Science and Technology Division, OakRidge National Laboratory

  • Satoshi Okamoto

    • Oak Ridge National Lab
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • University of Tennessee, Knoxville
    • Oak Ridge National Laboratory

  • Michael McGuire

    • Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Materials Science Division, Oak Ridge National Laboratory