Onset of non-linear IV transport with magnetic order in a Mott insulator

ORAL

Abstract

We observe a non-linear voltage and current relation in the layered magnetic semiconductor EuMn2P2 when it approaches its ordering temperature. Such behavior is seen in materials that have charge density wave order, or those proximal to metal-insulator transitions such as the current switching of resistive states in magnetoresistive manganites. However, none of the preceding occurs in EuMn2P2. We observe a spin-order driven magnetic transport in the voltage and current relation. Our results in this work could reveal some unanswered questions of conduction and spins in the Mott Insulator model. We suggest that such phenomena could be exploited in non-linear antiferromagnetic insulators and we also provide a route to observing such behavior using chemical design principles.

*This work was supported as part of the Institute for Quantum Matter, an Energy Frontier Research Center funded by the United States Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award DE-SC0019331.

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Presenters

  • Tanya Berry

    • Johns Hopkins University
    • The Johns Hopkins University

Authors

  • Tanya Berry

    • Johns Hopkins University
    • The Johns Hopkins University

  • Dominic H Ryan

    • Physics, McGill University
    • Physics Department and Centre for the Physics of Materials, McGill University
    • McGill University

  • Raivo Stern

    • Physics, Natl Institute of Chemical Physics & Biophysics

  • Nitesh Kumar

    • Solid State Chemistry, Max Planck Institute for Chemical Physics of Solids
    • Max Planck Institute for Chemical Physics of Solids

  • Nicodemos Varnava

    • Rutgers University, New Brunswick
    • Physics, Rutger Univeristy

  • Veronica Stewart

    • Johns Hopkins University

  • Walter Schnelle

    • Solid State Chemistry, Max Planck Institute for Chemical Physics of Solids

  • Rishi Banda

    • Johns Hopkins University

  • Vincent Charles Morano

    • Johns Hopkins University

  • Defa Lui

    • Halle, Max Planck Institute

  • Qingge Mu

    • Solid State Chemistry, Max Planck Institute for Chemical Physics of Solids
    • Max Planck Institute for Chemical Physics of Solids

  • Lakshmi Bhaskaran

    • Physics, HZDR

  • Christopher Pasco

    • Johns Hopkins University

  • Mazhar Ali

    • Halle, Max Planck Institute

  • Norman Armitage

    • Johns Hopkins University

  • Collin Leslie Broholm

    • Johns Hopkins University
    • Department of Physics and Astronomy and Institute for Quantum Matter, The Johns Hopkins University
    • Department of Physics and Astronomy and Institute for Quantum Matter, Johns Hopkins University, Baltimore, Maryland 21218, USA
    • Institute for Quantum Matter and Department of Physics and Astronomy, Johns Hopkins University
    • Physics, The Johns Hopkins University

  • Claudia Felser

    • Max Planck Institute for Chemical Physics of Solids
    • Max Planck Institute for the Chemical Physics of Solids
    • Solid State Chemistry, Max Planck Institute for Chemical Physics of Solids
    • Max Planck Institute, Dresden, Germany
    • Max Planck, Dresden
    • Max Planck Institute for Chemical Physics of Solids, 01187 Dresden
    • Max Planck Institute for Chemical Physics of Solids,

  • David Vanderbilt

    • Rutgers University, New Brunswick
    • Rutgers University
    • Physics, Rutger Univeristy
    • Department of Physics and Astronomy, Rutgers University
    • Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA

  • Tyrel McQueen

    • Johns Hopkins University
    • The Johns Hopkins University
    • Institute for Quantum Matter and Department of Physics and Astronomy, Johns Hopkins University