石墨烯/六方氮化硼超晶格结构中的可调谐自旋霍尔效应
Tunable Spin Hall Effect of Reflective Light for Graphene/hBN Superlattice Structure Metamaterials
DOI: 10.12677/APP.2021.1110045, PDF,   
作者: 伍舒琪, 张 硕, 付淑芳*：哈尔滨师范大学物理与电子工程学院，光电带隙材料教育部重点实验室，黑龙江 哈尔滨
关键词: 自旋霍尔效应；六方氮化硼；菲涅尔反射系数；Spin Hall Effect； hBN； Fresnel Reflection Coefficient
摘要: 通过在六方氮化硼的上表面铺上单层的石墨烯构建一个超晶格材料结构模型，我们在远红外频率区域获得了可调谐的自旋霍尔效应并研究了光束的入射角、光轴的倾斜角和化学势对其的影响。当入射角在布鲁斯特角附近时，在满足一定条件下自旋位移可达到极限值，并且所对应频率区域被极大拓宽。这些发现为纳米光学器件的应用提供了可能。
Abstract: This paper designs a superlattice material structure by covering a monolayer of graphene on hexagonal boron nitride (hBN). In the far infrared frequency region, a tunable spin Hall effect is obtained. The effects of incident Angle, inclination Angle of optical axis and chemical potential on spin Hall effect are studied, respectively. When the incident Angle is near Brewster Angle, the spin displacement can reach the limit value under certain conditions, and the corresponding frequency region is greatly widened. These findings provide the possibility for the application of nano optical devices.
文章引用：伍舒琪, 张硕, 付淑芳. 石墨烯/六方氮化硼超晶格结构中的可调谐自旋霍尔效应[J]. 应用物理, 2021, 11(10): 381-389. https://doi.org/10.12677/APP.2021.1110045

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