论文标题
弯曲石墨烯超级晶格中的自旋依赖性传播
Spin-dependent transmission in curved graphene superlattice
论文作者
论文摘要
我们研究了$ N $单元的弯曲石墨烯超晶格中的自旋依赖性传输，每个$ n $单元都由四个区域组成。第一个是凹面，第三个是凸，两个圆圈与平坦石墨烯片相距$ d $。隧道分析使我们能够确定与系统相关的所有传输和反射通道。结果，我们表明细胞的数量通过相同的自旋减少传输来起作用。当$ d $和$ n $足够大时，我们预测固体自旋过滤效果。最后，确定使用$ d $可以控制传输的程度和抑制时间。
We investigate spin-dependent transmission in a curved graphene superlattice of $N$ cells where each one is made up of four regions. The first is concave, and the third is convex, two arcs of circles separated by a distance $d$ from flat graphene sheets. The tunneling analysis allows us to determine all transmission and reflection channels associated with our system. As a result, we show that the number of cells acts by decreasing the transmissions with the same spin. We predict a solid spin-filtering effect when $d$ and $N$ are sufficiently large. Finally, it is determined that the degree and duration of suppression of the transmissions with the same spin over a range of energy are controllable using $d$.
