Electronic and Geometric Corrugation of Periodically Rippled, Self-nanostructured Graphene Epitaxially Grown on Ru(0001)

Abstract

Graphene epitaxially grown on Ru(0001) displays a remarkably ordered pattern of hills and valleys in Scanning Tunneling Microscopy (STM) images. To which extent the observed "ripples" are structural or electronic in origin have been much disputed recently. A combination of ultrahigh resolution STM images and Helium Atom diffraction data shows that i) the graphene lattice is rotated with respect to the lattice of Ru and ii) the structural corrugation as determined from He diffraction is substantially smaller (0.015 nm) than predicted (0.15 nm) or reported from X-Ray Diffraction or Low Energy Electron Diffraction. The electronic corrugation, on the contrary, is strong enough to invert the contrast between hills and valleys above +2.6 V as new, spatially localized electronic states enter the energy window of the STM. The large electronic corrugation results in a nanostructured periodic landscape of electron and holes pockets.

16 pages, 6 figures

References in corpus (11)

• Graphene: Status and Prospects
• Detection of Individual Gas Molecules Absorbed on Graphene
• Anisotropic behaviors of massless Dirac fermions in graphene under periodic potential
• Periodically rippled graphene: growth and spatially resolved electronic structure
• Two Dimensional Ir-Cluster Lattices on Moiré of Graphene with Ir(111)
• Unit cell of graphene on Ru(0001): a 25 x 25 supercell with 1250 carbon atoms
• Factors influencing graphene growth on metal surfaces
• Electronic and Geometric Corrugation of Periodically Rippled, Self-nanostructured Graphene Epitaxially Grown on Ru(0001)
• Potential Energy Landscape for hot electrons in periodically nanostructured graphene
• Graphene on Ru(0001): A corrugated and chiral structure
• Periodically modulated geometric and electronic structure of graphene on Ru(0001)

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