| Time：1130522 (Wed.) 14:20~16:20 Speaker：Prof.黃榮俊(Jung-Chun Huang) 國立成功大學物理學系/Department of Physics, National Cheng Kung University Title：Large Tunable Spin-to-Charge Conversion in Ni80Fe20/MoS2 by Cu Insertion Abstract： Spin-to-charge conversion at the interface between magnetic materials and transition metal dichalcogenides (TMDs) has drawn great interest in the research efforts to develop fast and ultra-low power consumption devices for spintronic applications. Here, we report ¬room temperature observations of spin-to-charge conversion arising from the interface of Ni80Fe20 (Py) and molybdenum disulfide (MoS2). This phenomenon can be characterized by the inverse Edelstein effect length (λ_IEE), which is enhanced with decreasing MoS2 thicknesses, demonstrating the dominant role of spin-orbital coupling (SOC) in MoS2. The spin-to-charge conversion can be significantly improved by inserting a Cu interlayer between Py and MoS2, suggesting that the Cu interlayer can prevent magnetic proximity effect from the Py layer and protect the SOC on the MoS2 surface from exchange interactions with Py. Furthermore, the Cu-MoS2 interface can enhance the spin current and improve electronic transport. Our results suggest that tailoring the interface of magnetic heterostructures provides an alternative strategy for the developm. Place：B101, Gongguan Campus, NTNU |
