title: Chemically resolved interface structure of epitaxial graphene on SiC(0001).
abstract: Atomic-layer 2D crystals have unique properties that can be significantly modified through interaction with an underlying support. For epitaxial graphene on SiC(0001), the interface strongly influences the electronic properties of the overlaying graphene. We demonstrate a novel combination of x-ray scattering and spectroscopy for studying the complexities of such a buried interface structure. This approach employs x-ray standing wave-excited photoelectron spectroscopy in conjunction with x-ray reflectivity to produce a highly resolved chemically sensitive atomic profile for the terminal substrate bilayers, interface, and graphene layers along the SiC[0001] direction.
authors: Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA.
authors: Jonathan D
authors: JD
authors: Emery
authors: Blanka
authors: B
authors: Detlefs
authors: Hunter J
authors: HJ
authors: Karmel
authors: Luke O
authors: LO
authors: Nyakiti
authors: D Kurt
authors: DK
authors: Gaskill
authors: Mark C
authors: MC
authors: Hersam
authors: Jörg
authors: J
authors: Zegenhagen
authors: Michael J
authors: MJ
authors: Bedzyk