摘要
基于电子光学性质,文章研究了非对称石墨烯p-n结中电子聚焦点的移动现象.应用非平衡格林函数方法展示了不同情况下聚焦点移动规律,并根据电子在界面散射行为解释了该现象.
We theoretically investigated the shift of the focal point in the asymmetric graphene p-n junction( PNJ) based on electron optics.In terms of the nonequilibrium Green's function technique,we numerically displayed the shift rule of the focusing point,and explained the phenomenon according to the scattering properties of electrons at the interface.
出处
《邵阳学院学报(自然科学版)》
2017年第3期85-88,共4页
Journal of Shaoyang University:Natural Science Edition
基金
国家自然科学基金资助项目(11447218)
关键词
电子光学性质
聚焦点移动现象
界面散射
electron optics
the shift of the focal point
interface scatter