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Magnetic order in the Dirac material EuMnSb<sub>2</sub>

ORAL

Abstract

EuMnSb2 is a potential Dirac semimetal with Dirac fermions located within the Sb layers. Here we present results from single-crystal neutron diffraction experiments on EuMnSb2. We find that the Eu and Mn magnetic sublattices order antiferromagnetically (AF) below 24(1) K and 324(1) K, respectively, with an additional magnetic phase transition at 9(1) K which may be related to the coupling between both magnetic sublattices. Neutron diffraction shows that each AF phase is characterized by a magnetic unit cell equal to the chemical one.

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Presenters

  • John Wilde

    Physics and Astronomy, Iowa State University/Ames Laboratory, Ames Lab/Iowa State

Authors

  • John Wilde

    Physics and Astronomy, Iowa State University/Ames Laboratory, Ames Lab/Iowa State

  • Benjamin Ueland

    Ames Lab, Physics and Astronomy, Iowa State University/Ames Laboratory, Division of Materials Science & Engineering, Ames Laboratory, Ames Laboratory and Iowa State University, Ames, IA USA 50011, Ames Laboratory/Iowa State University

  • Simon Riberolles

    Physics and Astronomy, Iowa State University/Ames Laboratory, Division of Materials Science & Engineering, Ames Laboratory, Ames Laboratory and Iowa State Univeristy

  • Dominic H Ryan

    McGill University

  • Andreas Kreyssig

    Physics and Astronomy, Iowa State University/Ames Laboratory, Department of Physics and Astronomy, Ames Laboratory, Iowa State University, Ames Lab/Iowa State, Ames Laboratory, Iowa State University, Dept. of Physics and Astronomy, Ames, Ames Laboratory and Iowa State Univeristy

  • David Vaknin

    Ames Lab, Physics and Astronomy, Iowa State University/Ames Laboratory

  • Thomas W Heitmann

    University of Missouri, University of Missouri Research Reactor, The Missouri Research Reactor, University of Missouri, Columbia, Missouri, Missouri Research Reactor, University of Missouri, University of Missouri Research Reactor, University of Missouri

  • Yong Liu

    Ames Lab, Institute of Physics, Ecole Polytechnique Federale de Lausanne, Ames Laboratory

  • Sergey Budko

    Iowa State University/ Ames Laboratory, Ames Laboratory, Physics and Astronomy, Iowa State University/Ames Laboratory, Ames Laboratory/Iowa State University, Ames Lab/Iowa State, Ames Laboratory, Ames, IA, Iowa State University/AmesLab, Department of Physics & Astronomy, Iowa State University/Ames Laboratory

  • Robert J McQueeney

    Ames Lab, Physics and Astronomy, Iowa State University/Ames Laboratory, Department of Physics and Astronomy, Ames Laboratory, Iowa State University, Ames Lab/Iowa State, Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA, Iowa State University, Ames Laboratory and Iowa State University, Ames, IA USA 50011, Ames Laboratory/Iowa State University