Carrier distribution control in bilayer graphene under a perpendicular electric field by interlayer stacking arrangements

摘要

We use density function theory to study the carrier distribution in bilayer graphene under a perpendicular electric field. The carrier distribution in bilayer graphene strongly depends on the interlayer stacking arrangements, field strength, and carrier concentration. Unusual carrier localization, which is dependent on the stacking arrangement, is observed under a high electric field and low carrier doping concentration. For all other field and carrier doping concentration conditions, the carriers are distributed throughout the layers, irrespective of the interlayer stacking arrangements.