Abstract
Two-dimensional (2D) materials provide a wide choice for the next-generation spintronic devices at the post-Moore era. Here, we reveal the effect of the 2D transition metal dichalcogenide MoS2 on the perpendicular magnetic anisotropy (PMA) and spin–orbit torque (SOT) of the Pt/Co/Pt multilayer. MoS2 can distinctly enhance the PMA of Pt/Co/Pt multilayer, which shows no obvious dependence on the thickness of MoS2. Moreover, the magnetization of monolayer MoS2/Pt/Co/Pt can be switched under a small external magnetic field around 300 Oe and maintained up to 4000 Oe, verifying the enhanced PMA by MoS2. Interestingly, the SOT efficiency can also be increased about 9.65% by monolayer MoS2, which can be attributed to the spin absorption at the MoS2/Pt interface. Comparing the SOT behaviors of devices with different MoS2 thickness, the monolayer MoS2 is proved to be an ideal candidate for high-performance SOT devices.
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