Probing electronic structures of graphene under magnetic field and electric field by Raman spectroscopy

Abstract

directly destroy the lattice structure of graphene by knocking off carbons or enabling the reaction between graphene and substrate. Bilayer graphene presents higher stability under e-beam irradiation than monolayer graphene does. In the formation of metallic contact, Ti could not introduce defects in graphene while Au remarkably damage graphene lattice. These experimental findings reveal the influence of the fabrication techniques on graphene lattice and could benefit for the optimization of processes.