A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions
Multiple magnetic skyrmion phases add an additional degree of freedom for skyrmion-based ultrahigh-density spin memory devices. Extending the field to 2D van der Waals magnets is a rewarding challenge, where the realizable degree of freedoms (e.g., thickness, twist angle, and electrical gating) and...
| Main Authors: | , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022
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| Online Access: | https://hdl.handle.net/1721.1/142652 |
| _version_ | 1811072979248873472 |
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| author | Wu, Yingying Francisco, Brian Chen, Zhijie Wang, Wei Zhang, Yu Wan, Caihua Han, Xiufeng Chi, Hang Hou, Yasen Lodesani, Alessandro Yin, Gen Liu, Kai Cui, Yong‐tao Wang, Kang L Moodera, Jagadeesh S |
| author2 | Massachusetts Institute of Technology. Plasma Science and Fusion Center |
| author_facet | Massachusetts Institute of Technology. Plasma Science and Fusion Center Wu, Yingying Francisco, Brian Chen, Zhijie Wang, Wei Zhang, Yu Wan, Caihua Han, Xiufeng Chi, Hang Hou, Yasen Lodesani, Alessandro Yin, Gen Liu, Kai Cui, Yong‐tao Wang, Kang L Moodera, Jagadeesh S |
| author_sort | Wu, Yingying |
| collection | MIT |
| description | Multiple magnetic skyrmion phases add an additional degree of freedom for skyrmion-based ultrahigh-density spin memory devices. Extending the field to 2D van der Waals magnets is a rewarding challenge, where the realizable degree of freedoms (e.g., thickness, twist angle, and electrical gating) and high skyrmion density result in intriguing new properties and enhanced functionality. In this work, a van der Waals interface, formed by two 2D ferromagnets Cr2 Ge2 Te6 and Fe3 GeTe2 with a Curie temperature of ≈65 and ≈205 K, respectively, hosting two groups of magnetic skyrmions, is reported. Two sets of topological Hall effect signals are observed below 6s0 K when Cr2 Ge2 Te6 is magnetically ordered. These two groups of skyrmions are directly imaged using magnetic force microscopy, and supported by micromagnetic simulations. Interestingly, the magnetic skyrmions persist in the heterostructure with zero applied magnetic field. The results are promising for the realization of skyrmionic devices based on van der Waals heterostructures hosting multiple skyrmion phases. |
| first_indexed | 2024-09-23T09:25:49Z |
| format | Article |
| id | mit-1721.1/142652 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:25:49Z |
| publishDate | 2022 |
| publisher | Wiley |
| record_format | dspace |
| spelling | mit-1721.1/1426522023-02-10T18:24:27Z A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions Wu, Yingying Francisco, Brian Chen, Zhijie Wang, Wei Zhang, Yu Wan, Caihua Han, Xiufeng Chi, Hang Hou, Yasen Lodesani, Alessandro Yin, Gen Liu, Kai Cui, Yong‐tao Wang, Kang L Moodera, Jagadeesh S Massachusetts Institute of Technology. Plasma Science and Fusion Center Francis Bitter Magnet Laboratory (Massachusetts Institute of Technology) Massachusetts Institute of Technology. Department of Physics Multiple magnetic skyrmion phases add an additional degree of freedom for skyrmion-based ultrahigh-density spin memory devices. Extending the field to 2D van der Waals magnets is a rewarding challenge, where the realizable degree of freedoms (e.g., thickness, twist angle, and electrical gating) and high skyrmion density result in intriguing new properties and enhanced functionality. In this work, a van der Waals interface, formed by two 2D ferromagnets Cr2 Ge2 Te6 and Fe3 GeTe2 with a Curie temperature of ≈65 and ≈205 K, respectively, hosting two groups of magnetic skyrmions, is reported. Two sets of topological Hall effect signals are observed below 6s0 K when Cr2 Ge2 Te6 is magnetically ordered. These two groups of skyrmions are directly imaged using magnetic force microscopy, and supported by micromagnetic simulations. Interestingly, the magnetic skyrmions persist in the heterostructure with zero applied magnetic field. The results are promising for the realization of skyrmionic devices based on van der Waals heterostructures hosting multiple skyrmion phases. 2022-05-23T17:10:36Z 2022-05-23T17:10:36Z 2022-04 2022-05-23T17:04:11Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142652 Wu, Yingying, Francisco, Brian, Chen, Zhijie, Wang, Wei, Zhang, Yu et al. 2022. "A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions." Advanced Materials, 34 (16). en 10.1002/adma.202110583 Advanced Materials Creative Commons Attribution NonCommercial License 4.0 https://creativecommons.org/licenses/by-nc/4.0/ application/pdf Wiley Wiley |
| spellingShingle | Wu, Yingying Francisco, Brian Chen, Zhijie Wang, Wei Zhang, Yu Wan, Caihua Han, Xiufeng Chi, Hang Hou, Yasen Lodesani, Alessandro Yin, Gen Liu, Kai Cui, Yong‐tao Wang, Kang L Moodera, Jagadeesh S A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions |
| title | A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions |
| title_full | A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions |
| title_fullStr | A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions |
| title_full_unstemmed | A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions |
| title_short | A Van der Waals Interface Hosting Two Groups of Magnetic Skyrmions |
| title_sort | van der waals interface hosting two groups of magnetic skyrmions |
| url | https://hdl.handle.net/1721.1/142652 |
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