Three-fold diffraction symmetry in epitaxial graphene and the SiC substrate Metadata

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Title

  • Main Title Three-fold diffraction symmetry in epitaxial graphene and the SiC substrate

Creator

  • Author: Siegel, D A
    Creator Type: Personal
  • Author: Zhou, S Y
    Creator Type: Personal
  • Author: El Gabaly, F
    Creator Type: Personal
  • Author: Schmid, A K
    Creator Type: Personal
  • Author: McCarty, K F
    Creator Type: Personal
  • Author: Lanzara, A
    Creator Type: Personal

Contributor

  • Sponsor: Materials Sciences Division
    Contributor Type: Organization

Publisher

  • Name: Lawrence Berkeley National Laboratory
    Place of Publication: Berkeley, California
    Additional Info: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

Date

  • Creation: 2009-12-10

Language

  • English

Description

  • Content Description: The crystallographic symmetries and spatial distribution of stacking domains in graphene films on 6H-SiC(0001) have been studied by low energy electron diffraction (LEED) and dark field imaging in a low energy electron microscope (LEEM). We find that the graphene diffraction spots from 2 and 3 atomic layers of graphene have 3-fold symmetry consistent with AB (Bernal or rhombohedral) stacking of the layers. On the contrary, graphene diffraction spots from the buffer layer and monolayer graphene have apparent 6-fold symmetry, although the 3-fold nature of the satellite spots indicates a more complex periodicity in the graphene sheets.
  • Physical Description: 4

Subject

  • Keyword: Periodicity
  • Keyword: Symmetry
  • Keyword: Diffraction
  • Keyword: Electron Microscopes
  • STI Subject Categories: 36
  • Keyword: Buffers
  • Keyword: Spatial Distribution
  • Keyword: Satellites
  • Keyword: Electron Diffraction
  • Keyword: Substrates

Source

  • Journal Name: Physical Review B; Journal Volume: 80; Journal Issue: 24

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: LBNL-3858E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 986542
  • Archival Resource Key: ark:/67531/metadc1014852