Confinement and Quantum Transport in AA-stacked Bilayer Graphene Heterojunctions

Graphene and its multilayer have been the focus of research in the last decade because of its unique and peculiar electronic, optical, and mechanical properties. This project is shedding light on the electronic properties and confinement in AA-stacked bilayer graphene (AA-BLG) heterojunctions. The heterojunctions are mainly composed of a single layer graphene and AA-BLG whose disconnected terminal exhibit either zigzag or armchair edges. Using the continuum model, we will scrutinize the electronic properties of heterojunctions with single or double domain walls. In addition, the mobility of the charge carriers will be investigated under the influence of external magnetic and electric fields. The confinement of charge carriers in pristine AA-BLG is hindered by Klein tunnelling which precludes the rigorous control of the charge carriers. Thus, we believe that the proposed AA-BLG heterojunctions will pave the way for the realization of a perfect confinement that will allow the control the carriers mobility in the system. The results of this project, hopefully, will pave the way towards developing a new generation of electronic devices that will guide the quest for the experimental usage of graphene in information technology.