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- W4289917709 abstract "Abstract Controlling the domain wall motion in the 2D ferromagnetic materials is significantly critical to the topological spin electronics, non‐volatile magnetic memories, and logic devices. The elevation of the domain wall velocity has become an urgent challenge. Herein, a current‐pulse‐driving strategy is unprecedentedly established to boost the domain wall velocity with an out‐of‐plane magnetic field and a rising temperature in the Fe 3 GeTe 2 by using the in situ Lorentz Transmission Electron Microscopy. Elevation of domain wall velocity depends on the demagnetization energy increase and Zeeman energy reduction, which originates from the magnetic moments tilting by a non‐parallel to the magnetic field. By injecting ≈2000 times of alternative current pulses, a uniform instead of an unsynchronized domain wall velocity is achieved. The key mechanism lies in the decrease of the domain wall number, leading to a reduction in the expansion and compression of the domain areas. Optimized pulse parameters are applied with a critical duration of 60 ns and the density of ≈2 × 10 10 A m −2 , leading to an elevation of velocity from 0.0308 to 0.39 m s −1 . The elevation in magnetic domain wall velocity can be useful for the application of 2D van der Waals ferromagnetic materials in future spintronic devices." @default.
- W4289917709 created "2022-08-06" @default.
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- W4289917709 date "2022-08-05" @default.
- W4289917709 modified "2023-10-17" @default.
- W4289917709 title "Elevation of Domain Wall Velocity Driven by Current Pulses in 2D Ferromagnetic Material Fe<sub>3</sub>GeTe<sub>2</sub>" @default.
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- W4289917709 doi "https://doi.org/10.1002/adfm.202205144" @default.
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