Giant and supergiant lattices on graphite

Nanoscale stripe arrays templated on Moiré patterns in graphite

“…Superlattices are regularly observed in HOPG and form due to interference 25 (Moiré) patterns formed when the top sheet of graphene is rotated with respect to the underlying crystal [13,14]. The same Moiré patterns are observed in epitactic graphene on Ruthenium and Iridium substrates.…”

“…Rotational defects are commonly observed in the stacking of graphene planes in both HOPG [13,30,14,31] and multi-layer graphene [32,33], and lead to 160 the formation of hexagonal superlattices. The generation of these defects has been ascribed to the cleaving process for HOPG [33], or by treatment of HOPG with chlorinated hydrocarbons [14,30].…”

“…The lattice constant a M of a Moiré pattern generated from two stacked sheets of graphene (lattice constant a g = 1.42Å) rotated by an angle of θ is given by equation 1 [13].…”

Charge density waves in the graphene sheets of the superconductor CaC6

“…However, because of a lack of complementary electronic structure measurements, the authors of these reports were unable to rule out other effects, including Moiré patterns, observed in graphite 32 , electron standing waves, reported in various metals 33 , and surface reconstruction or lattice depletion 31 . It is therefore important to consider these phenomena when examining our data.…”

Boron Nitride on Cu(111): An Electronically Corrugated Monolayer

“…Figure 2b shows four of these Moiré domains labeled α, β, γ and δ, respectively. The occurrence and coexistence of Moiré superlattices is well documented for both BN and graphene overlayers on metallic substrates 29,40,43 , but also for graphite, where so-called supergiant lattices with periodicities up to 15 nm were reported 44 . Generally the Moiré patterns are caused by a rotational misalignment and/or a different periodicity of the overlayer compared to the supporting lattice 43,45 .…”