Chemically resolved interface structure of epitaxial graphene on SiC(0001)

Jonathan D. Emery, Blanka Detlefs, Hunter J. Karmel, Luke O. Nyakiti, D. Kurt Gaskill, Mark C. Hersam, Jörg Zegenhagen, Michael J. Bedzyk

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


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.

Original languageEnglish
Article number215501
JournalPhysical review letters
Issue number21
Publication statusPublished - Nov 19 2013

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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