论文标题
具有超晶格电位的多层石墨烯
Multilayer graphene with a superlattice potential
论文作者
论文摘要
受超晶格电势的Bernal堆叠双层石墨烯可以实现拓扑和堆叠的扁平带[1]。在目前的工作中，我们将石墨烯异质结构上超晶格电位的研究扩展到了Trilayer和Quadrilayer石墨烯。比较伯纳尔和手性堆叠的多层人士表明，后者更适合于实现许多平坦乐队的堆栈。另一方面，Bernal堆叠的石墨烯异质结构可以实现拓扑平面。同时施加两个同时超级晶格电位可以增强这两种政权的生存能力。
Bernal stacked bilayer graphene subject to a superlattice potential can realize topological and stacked flat bands [1]. In the present work, we extend the study of a superlattice potential on graphene heterostructures to trilayer and quadrilayer graphene. Comparing Bernal- and chirally-stacked multilayers reveals that the latter are more suitable for realizing stacks of many flat bands. On the other hand, Bernal-stacked graphene heterostructures can realize topological flat bands. Imposing two simultaneous superlattice potentials enhances the viability of both regimes.
