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

doi:10.1103/PhysRevLett.111.215501

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

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

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.

Original language	English (US)
Article number	215501
Journal	Physical review letters
Volume	111
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.111.215501
State	Published - Nov 19 2013

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.111.215501

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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.",

author = "Emery, {Jonathan D.} and Blanka Detlefs and Karmel, {Hunter J.} and Nyakiti, {Luke O.} and Gaskill, {D. Kurt} and Hersam, {Mark C.} and J{\"o}rg Zegenhagen and Bedzyk, {Michael J.}",

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doi = "10.1103/PhysRevLett.111.215501",

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AU - Emery, Jonathan D.

AU - Detlefs, Blanka

AU - Karmel, Hunter J.

AU - Nyakiti, Luke O.

AU - Gaskill, D. Kurt

AU - Hersam, Mark C.

AU - Zegenhagen, Jörg

AU - Bedzyk, Michael J.

PY - 2013/11/19

Y1 - 2013/11/19

N2 - 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.

AB - 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.

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

Abstract

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