论文标题
石墨烯/NBSE $ _2 $ van der waals异质结构中的全向旋转转换转换
Omnidirectional spin-to-charge conversion in graphene/NbSe$_2$ van der Waals heterostructures
论文作者
论文摘要
自旋电流以不同方向向电荷电流极化的转化是新型Spintronic设备的钥匙到底。带有量身定型对称性的范德华异质结构是这样一个目标的非常吸引人的平台。在这里，通过执行非局部自旋进动实验，我们证明了在所有三个方向（x，y和z）上定向旋转的自旋转换（SCC）。通过分析信号在不同配置中的幅度和温度依赖性，我们认为所测量的不同SCC组件可能是由于旋转轨道接近性和扭曲的石墨烯/NBSE $ _2 $接口处的旋转轨道接近和破碎的对称性所致。如此有效的全向SCC为在Spintronic设备中使用新体系结构的门开了大门，从可以切换任何磁化的自旋轨道扭矩到指向任何方向指向的磁元件的磁态读数。
The conversion of spin currents polarized in different directions into charge currents is a keystone for novel spintronic devices. Van der Waals heterostructures with tailored symmetry are a very appealing platform for such a goal. Here, by performing nonlocal spin precession experiments, we demonstrate the spin-to-charge conversion (SCC) of spins oriented in all three directions (x, y, and z). By analyzing the magnitude and temperature dependence of the signal in different configurations, we argue that the different SCC components measured are likely due to spin-orbit proximity and broken symmetry at the twisted graphene/NbSe$_2$ interface. Such efficient omnidirectional SCC opens the door to the use of new architectures in spintronic devices, from spin-orbit torques that can switch any magnetization to the magnetic state readout of magnetic elements pointing in any direction.
