论文标题
大区域插入的2D-PB/石墨烯异质结构作为生成自旋轨道扭矩的平台
Large-Area Intercalated 2D-Pb/Graphene Heterostructure as a Platform for Generating Spin-Orbit Torque
论文作者
论文摘要
合成超薄重金属的可扩展平台可以使下一代Spintronics的高效率到旋转转换。在这里，我们报告了由Boindinement Heteroepitaxy（Chet）在SIC（0001）上的双层石墨烯下方的空气稳定，外上登记的单层PB的合成。衍射，光谱和显微镜揭示了基于CHET的PB插入，主要表现出由于有序的Frenkel-Kontorova类似域壁的有序网络，因此表现出斑驳的六边形上层建筑。该系统的空气稳定性可以实现前静态自旋扭矩铁磁共振（ST-FMR）测量值，该测量表明与对照样品相比，有效野外比的电荷/PB/PB/Ferromagnet异质结构中的电荷与旋转转化率增加了1.5倍。
A scalable platform to synthesize ultrathin heavy metals may enable high efficiency charge-to-spin conversion for next-generation spintronics. Here we report the synthesis of air-stable, epitaxially registered monolayer Pb underneath bilayer graphene on SiC (0001) by confinement heteroepitaxy (CHet). Diffraction, spectroscopy, and microscopy reveal CHet-based Pb intercalation predominantly exhibits a mottled hexagonal superstructure due to an ordered network of Frenkel-Kontorova-like domain walls. The system's air stability enables ex-situ spin torque ferromagnetic resonance (ST-FMR) measurements that demonstrate charge-to-spin conversion in graphene/Pb/ferromagnet heterostructures with a 1.5x increase in the effective field ratio compared to control samples.
