Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair
Abstract Various properties and potential technological applications of magnetic skyrmions have stimulated a flourishing interest in topological spin textures. Among them, biskyrmions with a rare topological charge of two are observed but their existence is still under debate. In this work, we prese...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-08-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-022-00486-y |
| _version_ | 1798042659731800064 |
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| author | Cheng-Jie Wang Pengfei Wang Yan Zhou Wenhong Wang Fazhan Shi Jiangfeng Du |
| author_facet | Cheng-Jie Wang Pengfei Wang Yan Zhou Wenhong Wang Fazhan Shi Jiangfeng Du |
| author_sort | Cheng-Jie Wang |
| collection | DOAJ |
| description | Abstract Various properties and potential technological applications of magnetic skyrmions have stimulated a flourishing interest in topological spin textures. Among them, biskyrmions with a rare topological charge of two are observed but their existence is still under debate. In this work, we present the formation of biskyrmion bubbles mediated by emergent monopoles via micromagnetic simulations. We find that biskyrmion bubbles and trivial bubbles share a unified three-dimensional structure, in which the relative position of an intrinsic emergent monopole-antimonopole pair dominates the two-dimensional topological property at the middle plane of magnetic uniaxial films. Biskyrmion bubbles can be transformed from trivial bubbles by the motion of emergent monopoles in confined geometry, paving the way for developing devices. These results highlight the three-dimensional aspect of skyrmion-related nanostructures and the versatile roles of emergent monopoles in topological spin textures. |
| first_indexed | 2024-04-11T22:38:33Z |
| format | Article |
| id | doaj.art-5adb227a76bc4db482998c40b60a5a0f |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-04-11T22:38:33Z |
| publishDate | 2022-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-5adb227a76bc4db482998c40b60a5a0f2022-12-22T03:59:07ZengNature Portfolionpj Quantum Materials2397-46482022-08-01711610.1038/s41535-022-00486-yFormation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pairCheng-Jie Wang0Pengfei Wang1Yan Zhou2Wenhong Wang3Fazhan Shi4Jiangfeng Du5CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of ChinaCAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of ChinaSchool of Science and Engineering, The Chinese University of Hong KongBeijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of SciencesCAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of ChinaCAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of ChinaAbstract Various properties and potential technological applications of magnetic skyrmions have stimulated a flourishing interest in topological spin textures. Among them, biskyrmions with a rare topological charge of two are observed but their existence is still under debate. In this work, we present the formation of biskyrmion bubbles mediated by emergent monopoles via micromagnetic simulations. We find that biskyrmion bubbles and trivial bubbles share a unified three-dimensional structure, in which the relative position of an intrinsic emergent monopole-antimonopole pair dominates the two-dimensional topological property at the middle plane of magnetic uniaxial films. Biskyrmion bubbles can be transformed from trivial bubbles by the motion of emergent monopoles in confined geometry, paving the way for developing devices. These results highlight the three-dimensional aspect of skyrmion-related nanostructures and the versatile roles of emergent monopoles in topological spin textures.https://doi.org/10.1038/s41535-022-00486-y |
| spellingShingle | Cheng-Jie Wang Pengfei Wang Yan Zhou Wenhong Wang Fazhan Shi Jiangfeng Du Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair npj Quantum Materials |
| title | Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair |
| title_full | Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair |
| title_fullStr | Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair |
| title_full_unstemmed | Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair |
| title_short | Formation of magnetic biskyrmions mediated by an intrinsic emergent monopole-antimonopole pair |
| title_sort | formation of magnetic biskyrmions mediated by an intrinsic emergent monopole antimonopole pair |
| url | https://doi.org/10.1038/s41535-022-00486-y |
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