ABSTRACT

The various stacking configurations, with high and low symmetries, can enrich and diversify the essential properties. The sliding bilayer graphene, which presents the transformation between the highly symmetric stackings, is an ideal system for studying the electronic topological transitions. The sliding of graphene flakes on graphene substrate is initiated by the scanning tunneling microscope (STM) tip to overcome the Van der Waals interactions. The first-principle calculations are used to comprehend the electronic topological transitions in the sliding bilayer graphene. The first-principles calculations are focused on how the various corrugated structures can create the feature-rich electronic properties in rippled graphenes. The structure transformation leads to the dramatic changes in band structure. The inversion symmetry in bilayer graphene is unbroken during the variation of shift. The geometric structure of a graphene ripple has a diversifying effect on the chemical bondings due to curved surfaces and determines the essential properties.