Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability
Abstract Realizing room-temperature magnetic skyrmions in two-dimensional van der Waals ferromagnets offers unparalleled prospects for future spintronic applications. However, due to the intrinsic spin fluctuations that suppress atomic long-range magnetic order and the inherent inversion crystal sym...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-45310-2 |
| _version_ | 1811153602269413376 |
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| author | Zefang Li Huai Zhang Guanqi Li Jiangteng Guo Qingping Wang Ying Deng Yue Hu Xuange Hu Can Liu Minghui Qin Xi Shen Richeng Yu Xingsen Gao Zhimin Liao Junming Liu Zhipeng Hou Yimei Zhu Xuewen Fu |
| author_facet | Zefang Li Huai Zhang Guanqi Li Jiangteng Guo Qingping Wang Ying Deng Yue Hu Xuange Hu Can Liu Minghui Qin Xi Shen Richeng Yu Xingsen Gao Zhimin Liao Junming Liu Zhipeng Hou Yimei Zhu Xuewen Fu |
| author_sort | Zefang Li |
| collection | DOAJ |
| description | Abstract Realizing room-temperature magnetic skyrmions in two-dimensional van der Waals ferromagnets offers unparalleled prospects for future spintronic applications. However, due to the intrinsic spin fluctuations that suppress atomic long-range magnetic order and the inherent inversion crystal symmetry that excludes the presence of the Dzyaloshinskii-Moriya interaction, achieving room-temperature skyrmions in 2D magnets remains a formidable challenge. In this study, we target room-temperature 2D magnet Fe3GaTe2 and unveil that the introduction of iron-deficient into this compound enables spatial inversion symmetry breaking, thus inducing a significant Dzyaloshinskii-Moriya interaction that brings about room-temperature Néel-type skyrmions with unprecedentedly small size. To further enhance the practical applications of this finding, we employ a homemade in-situ optical Lorentz transmission electron microscopy to demonstrate ultrafast writing of skyrmions in Fe3-x GaTe2 using a single femtosecond laser pulse. Our results manifest the Fe3-x GaTe2 as a promising building block for realizing skyrmion-based magneto-optical functionalities. |
| first_indexed | 2024-03-07T14:50:34Z |
| format | Article |
| id | doaj.art-65e1c043e39e4e20b26fcfe751c15d3e |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:50:34Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-65e1c043e39e4e20b26fcfe751c15d3e2024-03-05T19:42:53ZengNature PortfolioNature Communications2041-17232024-02-0115111110.1038/s41467-024-45310-2Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writabilityZefang Li0Huai Zhang1Guanqi Li2Jiangteng Guo3Qingping Wang4Ying Deng5Yue Hu6Xuange Hu7Can Liu8Minghui Qin9Xi Shen10Richeng Yu11Xingsen Gao12Zhimin Liao13Junming Liu14Zhipeng Hou15Yimei Zhu16Xuewen Fu17Ultrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal UniversitySchool of Integrated Circuits, Guangdong University of TechnologyUltrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversitySchool of Physics and Electronic and Electrical Engineering, Aba Teachers UniversityUltrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversityUltrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversityUltrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversityUltrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal UniversityBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of SciencesGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal UniversityState Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal UniversityCondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, UptonUltrafast Electron Microscopy Laboratory, The MOE Key Laboratory of Weak-Light Nonlinear Photonics, School of Physics, Nankai UniversityAbstract Realizing room-temperature magnetic skyrmions in two-dimensional van der Waals ferromagnets offers unparalleled prospects for future spintronic applications. However, due to the intrinsic spin fluctuations that suppress atomic long-range magnetic order and the inherent inversion crystal symmetry that excludes the presence of the Dzyaloshinskii-Moriya interaction, achieving room-temperature skyrmions in 2D magnets remains a formidable challenge. In this study, we target room-temperature 2D magnet Fe3GaTe2 and unveil that the introduction of iron-deficient into this compound enables spatial inversion symmetry breaking, thus inducing a significant Dzyaloshinskii-Moriya interaction that brings about room-temperature Néel-type skyrmions with unprecedentedly small size. To further enhance the practical applications of this finding, we employ a homemade in-situ optical Lorentz transmission electron microscopy to demonstrate ultrafast writing of skyrmions in Fe3-x GaTe2 using a single femtosecond laser pulse. Our results manifest the Fe3-x GaTe2 as a promising building block for realizing skyrmion-based magneto-optical functionalities.https://doi.org/10.1038/s41467-024-45310-2 |
| spellingShingle | Zefang Li Huai Zhang Guanqi Li Jiangteng Guo Qingping Wang Ying Deng Yue Hu Xuange Hu Can Liu Minghui Qin Xi Shen Richeng Yu Xingsen Gao Zhimin Liao Junming Liu Zhipeng Hou Yimei Zhu Xuewen Fu Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability Nature Communications |
| title | Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability |
| title_full | Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability |
| title_fullStr | Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability |
| title_full_unstemmed | Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability |
| title_short | Room-temperature sub-100 nm Néel-type skyrmions in non-stoichiometric van der Waals ferromagnet Fe3-x GaTe2 with ultrafast laser writability |
| title_sort | room temperature sub 100 nm neel type skyrmions in non stoichiometric van der waals ferromagnet fe3 x gate2 with ultrafast laser writability |
| url | https://doi.org/10.1038/s41467-024-45310-2 |
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