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- W4293660141 abstract "Field-free switching of perpendicular magnetization and improvement of spin-orbit torque (SOT) efficiency are the keys for SOT-based devices towards ultrafast and low-power memory and computing applications. In this letter, we investigated pulse current induced magnetization switching and its efficiency in perpendicularly coupled Pt/Co and CoFeB bilayers sandwiched by an ultrathin PtMn/Ta layer, prepared in the presence/absence of an in-plane in-situ field. It is found that both the SOT efficiency and field-free switching are enhanced by the presence of the in-situ field. Quantitative characterization indicates that the damping-like field, HDL, is boosted by an amount of up to 45%. The tilted spin texture at the Co/PtMn interface caused by the presence of the in-situ field may play a role on the enhancement of SOT efficiency and field-free switching. Our findings not only provide a promising approach for SOT efficiency enhancement but also offer a possible layer stack for the integration of a full magnetic tunnel junction (MTJ) for low power memory and computing." @default.
- W4293660141 created "2022-08-31" @default.
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- W4293660141 date "2022-12-01" @default.
- W4293660141 modified "2023-10-18" @default.
- W4293660141 title "In-situ field induced enhancement of damping-like field and field-free switching in perpendicularly coupled Pt/Co and CoFeB bilayers sandwiched by an ultrathin PtMn/Ta layer" @default.
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- W4293660141 doi "https://doi.org/10.1016/j.jmmm.2022.169890" @default.
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