Abstract
Electrical manipulation of skyrmions attracts considerable attention for its rich physics and promising applications. To date, such a manipulation is realized mainly via spin-polarized current based on spin-transfer torque or spin–orbital torque effect. However, this scheme is energy consuming and may produce massive Joule heating. To reduce energy dissipation and risk of heightened temperatures of skyrmion-based devices, an effective solution is to use electric field instead of current as stimulus. Here, we realize an electric-field manipulation of skyrmions in a nanostructured ferromagnetic/ferroelectrical heterostructure at room temperature via an inverse magneto-mechanical effect. Intriguingly, such a manipulation is non-volatile and exhibits a multistate feature. Numerical simulations indicate that the electric-field manipulation of skyrmions originates from strain-mediated modification of effective magnetic anisotropy and Dzyaloshinskii–Moriya interaction. Our results open a direction for constructing low-energy-dissipation, non-volatile, and multistate skyrmion-based spintronic devices.
Original language | English (US) |
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Journal | Nature Communications |
Volume | 11 |
Issue number | 1 |
DOIs | |
State | Published - Jul 17 2020 |
Bibliographical note
KAUST Repository Item: Exported on 2021-02-21Acknowledgements: The authors thank for the financial supports from the National Key Research and Development Program of China (Nos. 2016YFA0201002 and 2016YFA0300101), the National Natural Science Foundation of China (Nos. 11674108, 51272078, 11574091, 51671023, 51871017, 11974298, and 61961136006), Science and Technology Planning Project of Guangdong Province (No. 2015B090927006), the Natural Science Foundation of Guangdong Province (No. 2016A030308019), Open Research Fund of Key Laboratory of Polar Materials and Devices, Ministry of Education, National Natural Science Foundation of China Youth Fund (Grant No. 51901081), Science and Technology Program of Guangzhou (No. 2019050001), President’s Fund of CUHKSZ, Longgang Key Laboratory of Applied Spintronics and Shenzhen Peacock Group Plan (Grant No. KQTD20180413181702403), Guangdong Basic and Applied Basic Research Foundation (Grant No. 2019A1515110713).