Configuration of ripple domains and their topological defects formed under local mechanical stress on hexagonal monolayer graphene.

ABSTRACT: Ripples in graphene are extensively investigated because they ensure the mechanical stability of two-dimensional graphene and affect its electronic properties. They arise from spontaneous symmetry breaking and are usually manifested in the form of domains with long-range order. It is expected that topological defects accompany a material exhibiting long-range order, whose functionality depends on characteristics of domains and topological defects. However, there remains a lack of understanding regarding ripple domains and their topological defects formed on monolayer graphene. Here we explore configuration of ripple domains and their topological defects in exfoliated monolayer graphenes on SiO2/Si substrates using transverse shear microscope. We observe three-color domains with three diffe

SUBMITTER: Park Y 

PROVIDER: S-EPMC4371081 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature