论文标题
双层石墨烯中静电线连接的电导
Conductance of electrostatic wire junctions in bilayer graphene
论文作者
论文摘要
计算了双层石墨烯中静电线连接的电导,该电烯石墨烯(分类为在每个结侧的限制特征)被归类为琐碎的或琐碎的 - 琐事。拓扑侧始终对应于扭结的系统,这是与微不足道的适当连接所需的所需。我们报告了一个琐碎的交界处的电导淬火,并具有电导{\ IT}量化为$ 4E^2/h $,这仅是Chern kink-antikink系统的Chern允许的最大值的一半。该分析使我们能够在相当一般的条件下揭示在琐碎电线中的手性边缘模式。一个双交连接,微不足道的琐事,显示出创建的拓扑环引起的周期性类似Fano的电导共振(倾角或峰)。
The conductance of electrostatic wire junctions in bilayer graphene, classified as trivial-trivial or trivial-topological regarding the confinement character on each junction side, is calculated. The topological side always corresponds to a kink-antikink system, as required for a proper connection with a trivial side. We report a conductance quench of the trivial-topological junction, with a conductance {\it near} quantization to $4e^2/h$, which is only half of the maximum value allowed by the Chern number of a kink-antikink system. The analysis allowed us to uncover the existence of a chiral edge mode in the trivial wire under quite general conditions. A double junction, trivial-topological-trivial, displays periodic Fano-like conductance resonances (dips or peaks) induced by the created topological loop.