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Elliptical Bloch skyrmion chiral twins in an antiskyrmion system

Author

Listed:
  • Jagannath Jena

    (Max Planck Institute of Microstructure Physics)

  • Börge Göbel

    (Max Planck Institute of Microstructure Physics
    Martin Luther University Halle-Wittenberg)

  • Tianping Ma

    (Max Planck Institute of Microstructure Physics)

  • Vivek Kumar

    (Max Planck Institute for Chemical Physics of Solids)

  • Rana Saha

    (Max Planck Institute of Microstructure Physics)

  • Ingrid Mertig

    (Max Planck Institute of Microstructure Physics
    Martin Luther University Halle-Wittenberg)

  • Claudia Felser

    (Max Planck Institute for Chemical Physics of Solids)

  • Stuart S. P. Parkin

    (Max Planck Institute of Microstructure Physics)

Abstract

Skyrmions and antiskyrmions are distinct topological chiral spin textures that have been observed in various material systems depending on the symmetry of the crystal structure. Here we show, using Lorentz transmission electron microscopy, that arrays of skyrmions can be stabilized in a tetragonal inverse Heusler with D2d symmetry whose Dzyaloshinskii-Moriya interaction (DMI) otherwise supports antiskyrmions. These skyrmions can be distinguished from those previously found in several B20 systems which have only one chirality and are circular in shape. We find Bloch-type elliptical skyrmions with opposite chiralities whose major axis is oriented along two specific crystal directions: [010] and [100]. These structures are metastable over a wide temperature range and we show that they are stabilized by long-range dipole-dipole interactions. The possibility of forming two distinct chiral spin textures with opposite topological charges of ±1 in one material makes the family of D2d materials exceptional.

Suggested Citation

  • Jagannath Jena & Börge Göbel & Tianping Ma & Vivek Kumar & Rana Saha & Ingrid Mertig & Claudia Felser & Stuart S. P. Parkin, 2020. "Elliptical Bloch skyrmion chiral twins in an antiskyrmion system," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14925-6
    DOI: 10.1038/s41467-020-14925-6
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    Cited by:

    1. Imara Lima Fernandes & Stefan Blügel & Samir Lounis, 2022. "Spin-orbit enabled all-electrical readout of chiral spin-textures," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Jagannath Jena & Börge Göbel & Tomoki Hirosawa & Sebastián A. Díaz & Daniel Wolf & Taichi Hinokihara & Vivek Kumar & Ingrid Mertig & Claudia Felser & Axel Lubk & Daniel Loss & Stuart S. P. Parkin, 2022. "Observation of fractional spin textures in a Heusler material," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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