Skyrmion Sliding Switch in a 90-nm-Wide Nanostructured Chiral Magnet
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909953402339328 |
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| author | Wu, Yaodong Jiang, Jialiang Wang, Weiwei Kong, Lingyao Wang, Shouguo Tian, Mingliang Du, Haifeng Tang, Jin |
| author_facet | Wu, Yaodong Jiang, Jialiang Wang, Weiwei Kong, Lingyao Wang, Shouguo Tian, Mingliang Du, Haifeng Tang, Jin |
| contents | Magnetic skyrmions, renowned for their fascinating electromagnetic properties, hold potential for next-generation topological spintronic devices. Recent advancements have unveiled a rich tapestry of 3D topological magnetism. Nevertheless, the practical application of 3D topological magnetism in the development of topological spintronic devices remains a challenge. Here, we showcase the experimental utilization of 3D topological magnetism through the exploitation of skyrmion-edge attractive interactions in 90-nm-wide confined chiral FeGe and CoZnMn magnetic nanostructures. These attractive interactions result in two degenerate equilibrium positions, which can be naturally interpreted as binary bits for a skyrmion sliding switch. Our theory and simulation reveal current-driven spiral motions of skyrmions, governed by the anisotropic gradient of the potential landscape. Our experiments validate the theory that predicts a tunable threshold current density via magnetic field and temperature modulation of the energy barrier. Our results offer an approach for implementing universal on-off switch functions in 3D topological spintronic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_09225 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Skyrmion Sliding Switch in a 90-nm-Wide Nanostructured Chiral Magnet Wu, Yaodong Jiang, Jialiang Wang, Weiwei Kong, Lingyao Wang, Shouguo Tian, Mingliang Du, Haifeng Tang, Jin Mesoscale and Nanoscale Physics Materials Science Applied Physics Magnetic skyrmions, renowned for their fascinating electromagnetic properties, hold potential for next-generation topological spintronic devices. Recent advancements have unveiled a rich tapestry of 3D topological magnetism. Nevertheless, the practical application of 3D topological magnetism in the development of topological spintronic devices remains a challenge. Here, we showcase the experimental utilization of 3D topological magnetism through the exploitation of skyrmion-edge attractive interactions in 90-nm-wide confined chiral FeGe and CoZnMn magnetic nanostructures. These attractive interactions result in two degenerate equilibrium positions, which can be naturally interpreted as binary bits for a skyrmion sliding switch. Our theory and simulation reveal current-driven spiral motions of skyrmions, governed by the anisotropic gradient of the potential landscape. Our experiments validate the theory that predicts a tunable threshold current density via magnetic field and temperature modulation of the energy barrier. Our results offer an approach for implementing universal on-off switch functions in 3D topological spintronic devices. |
| title | Skyrmion Sliding Switch in a 90-nm-Wide Nanostructured Chiral Magnet |
| topic | Mesoscale and Nanoscale Physics Materials Science Applied Physics |
| url | https://arxiv.org/abs/2512.09225 |