Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems
Abstract Magnetic skyrmionic structures, including magnetic skyrmions and antiskyrmions, are characterized by swirling spin textures with non-trivial topologies. They are featured with specific topological charges, Q, which are of crucial importance in determining their topological properties. Owing...
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Nature Portfolio
2025-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-58529-4 |
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| author | Heng Niu Han Gyu Yoon Hee Young Kwon Zhiyuan Cheng Siqi Fu Hongying Zhu Bingfeng Miao Liang Sun Yizheng Wu Andreas K. Schmid Kai Liu Changyeon Won Haifeng Ding Gong Chen |
| author_facet | Heng Niu Han Gyu Yoon Hee Young Kwon Zhiyuan Cheng Siqi Fu Hongying Zhu Bingfeng Miao Liang Sun Yizheng Wu Andreas K. Schmid Kai Liu Changyeon Won Haifeng Ding Gong Chen |
| author_sort | Heng Niu |
| collection | DOAJ |
| description | Abstract Magnetic skyrmionic structures, including magnetic skyrmions and antiskyrmions, are characterized by swirling spin textures with non-trivial topologies. They are featured with specific topological charges, Q, which are of crucial importance in determining their topological properties. Owing to the invariance of the chiral nature, it is generally believed that Q is conserved in a given magnetic skyrmionic structure and is hard to alter. Here, we experimentally realize the control of Q of magnetic skyrmionic structures at room temperature in a Dzyaloshinskii-Moriya interaction (DMI) platform with spatially alternating signs. Depending on how many times it crosses the interfaces between DMI regions with opposite signs, the magnetic skyrmionic structures possess different Q. Modifying the DMI energy landscape through chemisorbed oxygen, a magnetic topological transition is realized. This creation and manipulation of magnetic skyrmionic structures with controllable Q, in particular the DMI-stabilized thin-film antiskyrmions and high-Q skyrmionic structures, enables a new degree of freedom to control their dynamics via a novel DMI confinement effect. Our findings open up an unexplored avenue on various topological magnetic skyrmionic structures and their potential applications. |
| format | Article |
| id | doaj-art-98369616efba46a8b39ae5df4e1d5af0 |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-98369616efba46a8b39ae5df4e1d5af02025-08-20T02:12:02ZengNature PortfolioNature Communications2041-17232025-04-0116111010.1038/s41467-025-58529-4Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systemsHeng Niu0Han Gyu Yoon1Hee Young Kwon2Zhiyuan Cheng3Siqi Fu4Hongying Zhu5Bingfeng Miao6Liang Sun7Yizheng Wu8Andreas K. Schmid9Kai Liu10Changyeon Won11Haifeng Ding12Gong Chen13National Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityDepartment of Physics, Kyung Hee UniversityCenter for Semiconductor Technology, Korea Institute of Science and TechnologyNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityDepartment of Physics, State Key Laboratory of Surface Physics and Advanced Materials Laboratory, Fudan UniversityNCEM, Molecular Foundry, Lawrence Berkeley National LaboratoryPhysics Department, Georgetown UniversityDepartment of Physics, Kyung Hee UniversityNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityNational Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing UniversityAbstract Magnetic skyrmionic structures, including magnetic skyrmions and antiskyrmions, are characterized by swirling spin textures with non-trivial topologies. They are featured with specific topological charges, Q, which are of crucial importance in determining their topological properties. Owing to the invariance of the chiral nature, it is generally believed that Q is conserved in a given magnetic skyrmionic structure and is hard to alter. Here, we experimentally realize the control of Q of magnetic skyrmionic structures at room temperature in a Dzyaloshinskii-Moriya interaction (DMI) platform with spatially alternating signs. Depending on how many times it crosses the interfaces between DMI regions with opposite signs, the magnetic skyrmionic structures possess different Q. Modifying the DMI energy landscape through chemisorbed oxygen, a magnetic topological transition is realized. This creation and manipulation of magnetic skyrmionic structures with controllable Q, in particular the DMI-stabilized thin-film antiskyrmions and high-Q skyrmionic structures, enables a new degree of freedom to control their dynamics via a novel DMI confinement effect. Our findings open up an unexplored avenue on various topological magnetic skyrmionic structures and their potential applications.https://doi.org/10.1038/s41467-025-58529-4 |
| spellingShingle | Heng Niu Han Gyu Yoon Hee Young Kwon Zhiyuan Cheng Siqi Fu Hongying Zhu Bingfeng Miao Liang Sun Yizheng Wu Andreas K. Schmid Kai Liu Changyeon Won Haifeng Ding Gong Chen Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems Nature Communications |
| title | Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems |
| title_full | Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems |
| title_fullStr | Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems |
| title_full_unstemmed | Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems |
| title_short | Magnetic skyrmionic structures with variable topological charges in engineered Dzyaloshinskii-Moriya interaction systems |
| title_sort | magnetic skyrmionic structures with variable topological charges in engineered dzyaloshinskii moriya interaction systems |
| url | https://doi.org/10.1038/s41467-025-58529-4 |
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