Local magnetism in a correlated Kagome magnet with massive Dirac Fermions

ORAL

Abstract

Recent photoemission and scanning tunneling experiments revealed that Fe3Sn2, a strongly-correlated Kagome magnet, features massive Dirac fermions and an intrinsic electronic nematicity [1, 2]. DFT calculations show that the Dirac mass depends significantly on the local magnetic moment. The electronic nematicity also relates to local magnetism through the spin-orbital coupling. Here, we present our small-angle neutron scattering and angle-resolved charge transport results in combination with DFT calculations to characterize the complex role of local magnetism in Fe3Sn2.

1. Ye, L. et al., Nature 555, 638 (2018)
2. Yin, J., et al., Nature 562, 91 (2018)

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Presenters

  • Yangmu Li

    Brookhaven National Laboratory, CMPMS, Brookhaven National Laboratory, Condensed Matter Physics & Materials Science, Brookhaven National Laboratory

Authors

  • Yangmu Li

    Brookhaven National Laboratory, CMPMS, Brookhaven National Laboratory, Condensed Matter Physics & Materials Science, Brookhaven National Laboratory

  • Qi Wang

    Physics Department, Renmin University of China

  • Ryan Desautels

    Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge National Laboratory, Large Scale Structures Division, Oak Ridge National Laboratory

  • Qianheng Du

    CMPMS, Brookhaven National Laboratory, Department of Materials Science and Chemical Engineering, Stony Brook University

  • Weijun Ren

    Institute of Metal Research, Chinese Academy of Sciences

  • Zhidong Zhang

    Institute of Metal Research, Chinese Academy of Sciences

  • Cedomir Petrovic

    CMPMS, Brookhaven National Laboratory, Brookhaven National Laboratory, CMPMSD, Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Lisa DeBeer-Schmitt

    Neutron Science Directorate, Oak Ridge National Laboratory, Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge National Laboratory

  • Igor Zaliznyak

    Brookhaven National Laboratory, CMPMS, Brookhaven National Laboratory

  • Weiguo Yin

    Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, CMPMS, Brookhaven National Laboratory

  • Hechang Lei

    Physics Department, Renmin University of China, Brookhaven National Laboratory, Renmin University of China, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • John Tranquada

    Brookhaven National Laboratory, CMPMS, Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Condensed Matter Physics & Materials Science, Brookhaven National Laboratory, Brookhaven Natl Lab