Trigonal distortion of topologically confined channels in bilayer graphene
Trigonal distortion of topologically confined channels in bilayer graphene
复制标题
DOI：
10.1063/1.3605568
复制
发表时间：
2010-12
影响因子：
4
通讯作者：
A. N'unez;E. S. Morell;P. Vargas
中科院分区：
文献类型：
--
作者：
A. N'unez;E. S. Morell;P. Vargas
在这项工作中，我们表明，在双层石墨烯中的电子带的三角形翘曲显着修改的拓扑限制的一维模式的行为，由于不均匀的偏置，改变整个通道的符号。最多有四个零模式，这取决于通道的方向，这些零模式与由于三角形翘曲引起的拓扑电荷的分解有关。
In this work, we show that the trigonal warping of the electronic bands in bilayer graphene dramatically modifies the behavior of the topologically confined one-dimensional modes due to an inhomogeneous bias that changes sign across a channel. Up to four zero modes are present, depending on the orientation of the channel, these zero modes are related to a fractionalization of the topological charge due to the trigonal warping.