论文标题
WTE2 van der waals中的电荷旋转转换信号具有几何设计
Charge-spin conversion signal in WTe2 van der Waals hybrid devices with a geometrical design
论文作者
论文摘要
对于将来的Spintronic和量子技术，希望通过电荷旋转通过电荷旋转转换对自旋极化的有效产生和控制。在这里，我们报告了带有几何设计的基于WEYL半候选WTE2的混合石墨烯设备中测量的电荷旋转转换（CSC）信号。值得注意的是，石墨烯自旋阀通道上WTE2的几何角度产生对称和反对称CSC信号成分的贡献。 CSC信号在不同门电压和铁磁磁化时的自旋进动测量显示在室温下CSC的稳健性。这些结果对于异质结构设备的设计以及二维自旋电路的架构可能很有用。
The efficient generation and control of spin polarization via charge-spin conversion in topological semimetals are desirable for future spintronic and quantum technologies. Here, we report the charge-spin conversion (CSC) signals measured in a Weyl semimetal candidate WTe2 based hybrid graphene device with a geometrical design. Notably, the geometrical angle of WTe2 on the graphene spin-valve channel yields contributions to symmetric and anti-symmetric CSC signal components. The spin precession measurements of CSC signal at different gate voltages and ferromagnet magnetization shows the robustness of the CSC in WTe2 at room temperature. These results can be useful for the design of heterostructure devices and in the architectures of two-dimensional spintronic circuits.
