Pseudo-magnetic Field In Deformed Graphene

Graphene is a really free standing two-dimensional material. This feature makesgraphene has good flexibility and therefore, is very easy to be corrugated. Thedeformation will subtly affect the electronic states, so the electronic transportproperties will be changed. The theoretical analysis shows that the influence of thegeometric deformation on the electrons near the Fermi points is very similar to aneffective magnetic field. In this paper the spatial distribution of this effectivepseudo-magnetic field generated by two kinds of corrugated grapheme nanoribbonsare investigated.This paper is divided into three chapters:The first chapter is an introduction of the background of graphene。The second chapter mainly introduces the theoretical model and basic methods,including the tight-binding model and the non-equilibrium Green function method, aswell as the effective pseudo-magnetic field theory，describing the influence ofgeometrical deformation on the electronic properties.The third chapter discusses the electronic properties of three corrugated zigzaggraphene nanoribbons and the influence of the ripple orientation on thepseudo-magnetic field.