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  Elliptical Bloch skyrmion chiral twins in an antiskyrmion system

Jena, J., Göbel, B., Ma, T., Kumar, V., Saha, R., Mertig, I., et al. (2020). Elliptical Bloch skyrmion chiral twins in an antiskyrmion system. Nature Communications, 11: 1115, pp. 1-9. doi:10.1038/s41467-020-14925-6.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-E623-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-E65A-3
Genre: Journal Article

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 Creators:
Jena, Jagannath1, Author
Göbel, Börge1, Author
Ma, Tianping1, Author
Kumar, Vivek2, Author              
Saha, Rana1, Author
Mertig, Ingrid1, Author
Felser, Claudia3, Author              
Parkin, Stuart S. P.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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Free keywords: crystal structure, electron, polarization, temperature profile, topology, adult, article, chirality, crystal, dipole, transmission electron microscopy
 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. © 2020, The Author(s).

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Language(s): eng - English
 Dates: 2020-02-282020-02-28
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1038/s41467-020-14925-6
 Degree: -

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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 11 Sequence Number: 1115 Start / End Page: 1 - 9 Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723