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Imaging and writing magnetic domains in the non-collinear antiferromagnet Mn3Sn

Author

Listed:
  • Helena Reichlova

    (Technische Universität Dresden)

  • Tomas Janda

    (Charles University)

  • Joao Godinho

    (Charles University
    Institute of Physics, Czech Academy of Sciences)

  • Anastasios Markou

    (Max Planck Institute for Chemical Physics of Solids)

  • Dominik Kriegner

    (Institute of Physics, Czech Academy of Sciences
    Max Planck Institute for Chemical Physics of Solids)

  • Richard Schlitz

    (Technische Universität Dresden)

  • Jakub Zelezny

    (Institute of Physics, Czech Academy of Sciences)

  • Zbynek Soban

    (Institute of Physics, Czech Academy of Sciences)

  • Mauricio Bejarano

    (Institute of Ion Beam Physics and Materials Research)

  • Helmut Schultheiss

    (Institute of Ion Beam Physics and Materials Research)

  • Petr Nemec

    (Charles University)

  • Tomas Jungwirth

    (Institute of Physics, Czech Academy of Sciences
    University of Nottingham)

  • Claudia Felser

    (Max Planck Institute for Chemical Physics of Solids)

  • Joerg Wunderlich

    (Institute of Physics, Czech Academy of Sciences
    Hitachi Cambridge Laboratory)

  • Sebastian T. B. Goennenwein

    (Technische Universität Dresden)

Abstract

Non-collinear antiferromagnets are revealing many unexpected phenomena and they became crucial for the field of antiferromagnetic spintronics. To visualize and prepare a well-defined domain structure is of key importance. The spatial magnetic contrast, however, remains extraordinarily difficult to be observed experimentally. Here, we demonstrate a magnetic imaging technique based on a laser induced local thermal gradient combined with detection of the anomalous Nernst effect. We employ this method in one the most actively studied representatives of this class of materials—Mn3Sn. We demonstrate that the observed contrast is of magnetic origin. We further show an algorithm to prepare a well-defined domain pattern at room temperature based on heat assisted recording principle. Our study opens up a prospect to study spintronics phenomena in non-collinear antiferromagnets with spatial resolution.

Suggested Citation

  • Helena Reichlova & Tomas Janda & Joao Godinho & Anastasios Markou & Dominik Kriegner & Richard Schlitz & Jakub Zelezny & Zbynek Soban & Mauricio Bejarano & Helmut Schultheiss & Petr Nemec & Tomas Jung, 2019. "Imaging and writing magnetic domains in the non-collinear antiferromagnet Mn3Sn," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13391-z
    DOI: 10.1038/s41467-019-13391-z
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