论文标题
菌株诱导石墨烯中激子的量子大厅效应
Strain induced quantum Hall effect of excitons in graphene
论文作者
论文摘要
我们研究了由单层和双层石墨烯的菌株诱导的均匀伪磁场的作用，作用于激子。在我们的分析中，至关重要的是，假磁场作用于激子的组成粒子的电荷，即电子和孔，与磁场相同。此外，使用圆形极化激光场，只有在Gapped石墨烯的蜂窝晶格的一个山谷中，电子和孔才能激发。这打破了时间转换对称性，并提供了观察此假磁性Exciton系统中各种量子厅现象的可能性。我们的研究对复合颗粒的量子厅效应提出了一个基本问题，并为假磁性excitons的量子霍尔物理学铺平了道路。
We study the effect of a uniform pseudomagnetic field, induced by a strain in a monolayer and double layer of gapped graphene, acting on excitons. For our analysis it is crucial that the pseudomagnetic field acts on the charges of the constituent particles of the excitons, i.e., the electrons and holes, the same way in contrast to a magnetic field. Moreover, using a circularly polarized laser field, the electrons and the holes can be excited only in one valley of the honeycomb lattice of gapped graphene. This breaks the time-reversal symmetry and provides the possibility to observe the various Quantum Hall phenomena in this pseudomagnetoexciton system. Our study poses a fundamental problem of the quantum Hall effect for composite particles and paves the way for quantum Hall physics of pseudomagnetoexcitons.
