We first observed the spin-to-charge conversion due to both the inverse Rashba-Edelstein effect (IREE) and inverse spin-Hall effect in a holey multilayer molybdenum disulfide (MoS₂) intermediate layer in a Pt/YIG structure via LSSE measurements under nonequilibrium magnetization. We found an enhancement of approximately 238%, 307%, and 290% in the longitudinal spin Seebeck effect (LSSE) voltage, spin-to-charge current, and thermoelectric (TE) power factor, respectively, compared with the monolayer MoS₂ interlayer in a Pt/YIG structure. Such an enhancement in the LSSE performance of Pt/holey MoS₂/YIG can be explained by the improvement of spin accumulation in the Pt layer by induced spin fluctuation as well as increased additional spin-to-charge conversion due to in-plane IREE. Our findings represent a significant achievement in the understanding of spin transport in atomically thin MoS₂ interlayers and pave the way toward large-area TE energy-harvesting devices in two-dimensional transition metal dichalcogenide materials.

中文翻译：

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Pt / Holey MoS ₂ / Y ₃ Fe ₅ O ₁₂杂化结构中增强的自旋塞贝克热功率

我们首先通过LSSE测量，在Pt / YIG结构中的多孔多层二硫化钼（MoS ₂）中间层中，由于逆Rashba-Edelstein效应（IREE）和逆Spin-Hall效应引起的自旋至电荷转换。非平衡磁化。我们发现，与单层MoS ₂夹层相比，纵向自旋塞贝克效应（LSSE）电压，自旋充电电流和热电（TE）功率因数分别提高了约238％，307％和290％在Pt / YIG结构中。Pt /多孔MoS ₂的LSSE性能的这种增强/ YIG可以通过感应自旋波动改善Pt层中的自旋积累以及由于面内IREE而增加的额外自旋至电荷转换来解释。我们的发现代表了在理解原子上薄的MoS ₂中间层中的自旋输运方面的重大成就，并为二维过渡金属二卤化碳材料中的大面积TE能量收集设备铺平了道路。