Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals
Abstract: A biskyrmion consists of two bound, topologically stable, skyrmion spin textures. These coffee‐bean‐shaped objects are observed in real space in thin plates using Lorentz transmission electron microscopy (LTEM). From LTEM imaging alone, it is not clear whether biskyrmions are surface‐confined objects, or, analogous to skyrmions in noncentrosymmetric helimagnets, 3D tube‐like structures in a bulk sample. Here, the biskyrmion form factor is investigated in single‐ and polycrystalline‐MnNiGa samples using small‐angle neutron scattering. It is found that biskyrmions are not long‐range ordered, not even in single crystals. Surprisingly all of the disordered biskyrmions have their in‐plane symmetry axis aligned along certain directions, governed by the magnetocrystalline anisotropy. This anisotropic nature of biskyrmions may be further exploited to encode information.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals ; volume:31 ; number:17 ; year:2019 ; extent:8
Advanced materials ; 31, Heft 17 (2019) (gesamt 8)
- Urheber
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Li, Xiyang
Zhang, Shilei
Li, Hang
Venero, Diego Alba
White, Jonathan S.
Cubitt, Robert
Huang, Qingzhen
Chen, Jie
He, Lunhua
van der Laan, Gerrit
Wang, Wenhong
Hesjedal, Thorsten
Wang, Fangwei
- DOI
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10.1002/adma.201900264
- URN
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urn:nbn:de:101:1-2022072409302715244465
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:28 MESZ
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Beteiligte
- Li, Xiyang
- Zhang, Shilei
- Li, Hang
- Venero, Diego Alba
- White, Jonathan S.
- Cubitt, Robert
- Huang, Qingzhen
- Chen, Jie
- He, Lunhua
- van der Laan, Gerrit
- Wang, Wenhong
- Hesjedal, Thorsten
- Wang, Fangwei
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