Dynamic Behavior of Above-Room-Temperature Robust Skyrmions in 2D Van der Waals Magnet
Magnetic skyrmions are swirl-like spin configurations that present topological properties, which have great potential as information carriers for future high-density and low-energy-consumption devices. The optimization of skyrmion-hosting materials that can be integrated with semiconductor-based circuits is the primary challenge for their industrialization. Two-dimensional van der Waals ferromagnets are emerging materials that have excellent carrier mobility and compatibility with integrated circuits, making them an ideal candidate for spintronic devices. Here, we report the realization of skyrmions at above room temperature in the 2D ferromagnet Fe<sub>3</sub>GaTe<sub>2</sub>. The thickness tunability of their skyrmion size and the formation of the skyrmion lattice are revealed. Furthermore, we demonstrate that the skyrmions can be moved by a low-density current at room temperature, together with an apparent skyrmion Hall effect, which is consistent with our quantitative micromagnetic simulation. Our work offers a promising 2D material platform for harnessing magnetic skyrmions in practical device applications.
Authors
- Yilian Xi
- Xinyi Zhou (ORCID: https://orcid.org/0009-0007-4780-7636)
- Ningyan Cheng (ORCID: https://orcid.org/0000-0002-3754-3776)
- Zhijie Ma (ORCID: https://orcid.org/0000-0002-8036-2145)
- Xiang Zhou (ORCID: https://orcid.org/0000-0002-1973-3736)
- Weichang Hao (ORCID: https://orcid.org/0000-0002-1597-7151)
- Haonan Jin (ORCID: https://orcid.org/0000-0002-3348-502X)
- Iftikhar Ahmed (ORCID: https://orcid.org/0000-0003-3523-300X)
- Ting Yu (ORCID: https://orcid.org/0000-0002-0113-2895)
- Yi Du (ORCID: https://orcid.org/0000-0003-1932-6732)
- Hanqing Shi
- Jianfeng Wang (ORCID: https://orcid.org/0000-0003-2076-9805)
- Jun Li (ORCID: https://orcid.org/0000-0002-6928-1256)
- Jiaqi Liu (ORCID: https://orcid.org/0000-0002-8119-4534)
- Jingwei Zhang (ORCID: https://orcid.org/0000-0002-2261-7605)
- He‐Ping Li (ORCID: https://orcid.org/0000-0002-3149-757X)
- Shilei Zhang (ORCID: https://orcid.org/0000-0002-6870-9222)
- Ying Sun (ORCID: https://orcid.org/0009-0000-4071-2537)
- Jingyi Chen (ORCID: https://orcid.org/0009-0004-6576-1086)
Institutions
- Anhui University (CN)
- ShanghaiTech University (CN)
- Wuhan University (CN)
- Beihang University (CN)
- Wuhan Institute of Technology (CN)
Publication Details
- Journal
- Nano Letters
- Published
- 2024-08-29
- DOI
- https://doi.org/10.1021/acs.nanolett.4c02835
- Citations
- 10
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.17
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Science and Technology Commission of Shanghai Municipality
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities