Publications Details
Pinning of graphene to Ir(111) by flat Ir dots
Compact flat Ir islands form and are stable at 400 K when <0.1 monolayer of Ir is evaporated onto a graphene flake preadsorbed on Ir(111). Local density approximation calculations account for the Ir islands' two dimensionality and their preferred sites on the substrate. They show that local s p3 bonding at once chemisorbs the dots above the graphene and firmly pins the graphene layer to the underlying metal. © 2008 The American Physical Society.