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Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries

Magnetic skyrmions and antiskyrmions have attracted much interest owing to their topological features and spintronic functionalities. In contrast to skyrmions, the generation of antiskyrmions relies on tunning both the magnitude and direction of the external magnetic field. Here, it is reported that...

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Autores principales: Peng, Licong, Iakoubovskii, Konstantin V., Karube, Kosuke, Taguchi, Yasujiro, Tokura, Yoshinori, Yu, Xiuzhen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9534945/
https://www.ncbi.nlm.nih.gov/pubmed/35978271
http://dx.doi.org/10.1002/advs.202202950
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author Peng, Licong
Iakoubovskii, Konstantin V.
Karube, Kosuke
Taguchi, Yasujiro
Tokura, Yoshinori
Yu, Xiuzhen
author_facet Peng, Licong
Iakoubovskii, Konstantin V.
Karube, Kosuke
Taguchi, Yasujiro
Tokura, Yoshinori
Yu, Xiuzhen
author_sort Peng, Licong
collection PubMed
description Magnetic skyrmions and antiskyrmions have attracted much interest owing to their topological features and spintronic functionalities. In contrast to skyrmions, the generation of antiskyrmions relies on tunning both the magnitude and direction of the external magnetic field. Here, it is reported that antiskyrmions can be efficiently created via quenching and robustly persist at zero field in the Fe(1.9)Ni(0.9)Pd(0.2)P magnet with the S (4)‐symmetry. It is demonstrated that well‐ordered antiskyrmions form in a square lattice in a confining micrometer‐scale square geometry, while the antiskyrmion lattice distorts in triangular, circular, or rotated‐square geometry; the distortion depends on the relative configuration between sample edges and the two q‐vectors arising from the anisotropic Dzyaloshinskii–Moriya interaction, in good agreement with micromagnetic simulations. It is also characterized transformations from antiskyrmions to skyrmions and nontopological bubbles at different directions and values of external field. These results demonstrate a roadmap for generating and controlling antiskyrmions in a confining geometry.
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spelling pubmed-95349452022-10-11 Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries Peng, Licong Iakoubovskii, Konstantin V. Karube, Kosuke Taguchi, Yasujiro Tokura, Yoshinori Yu, Xiuzhen Adv Sci (Weinh) Research Articles Magnetic skyrmions and antiskyrmions have attracted much interest owing to their topological features and spintronic functionalities. In contrast to skyrmions, the generation of antiskyrmions relies on tunning both the magnitude and direction of the external magnetic field. Here, it is reported that antiskyrmions can be efficiently created via quenching and robustly persist at zero field in the Fe(1.9)Ni(0.9)Pd(0.2)P magnet with the S (4)‐symmetry. It is demonstrated that well‐ordered antiskyrmions form in a square lattice in a confining micrometer‐scale square geometry, while the antiskyrmion lattice distorts in triangular, circular, or rotated‐square geometry; the distortion depends on the relative configuration between sample edges and the two q‐vectors arising from the anisotropic Dzyaloshinskii–Moriya interaction, in good agreement with micromagnetic simulations. It is also characterized transformations from antiskyrmions to skyrmions and nontopological bubbles at different directions and values of external field. These results demonstrate a roadmap for generating and controlling antiskyrmions in a confining geometry. John Wiley and Sons Inc. 2022-08-17 /pmc/articles/PMC9534945/ /pubmed/35978271 http://dx.doi.org/10.1002/advs.202202950 Text en © 2022 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Peng, Licong
Iakoubovskii, Konstantin V.
Karube, Kosuke
Taguchi, Yasujiro
Tokura, Yoshinori
Yu, Xiuzhen
Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries
title Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries
title_full Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries
title_fullStr Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries
title_full_unstemmed Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries
title_short Formation and Control of Zero‐Field Antiskyrmions in Confining Geometries
title_sort formation and control of zero‐field antiskyrmions in confining geometries
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9534945/
https://www.ncbi.nlm.nih.gov/pubmed/35978271
http://dx.doi.org/10.1002/advs.202202950
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