Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces Metadata

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Title

  • Main Title Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces

Creator

  • Author: Sandin, Andreas
    Creator Type: Personal
    Creator Info: North Carolina State University
  • Author: Jayasekera, Thushari
    Creator Type: Personal
    Creator Info: Southern Illinois University at Carbondale
  • Author: Rowe, J. E.
    Creator Type: Personal
    Creator Info: North Carolina State University
  • Author: Kim, Ki Wook
    Creator Type: Personal
    Creator Info: North Carolina State University
  • Author: Buongiorno Nardelli, Marco
    Creator Type: Personal
    Creator Info: University of North Texas; North Carolina State University; Oak Ridge National Laboratory
  • Author: Dougherty, Daniel B.
    Creator Type: Personal
    Creator Info: North Carolina State University

Publisher

  • Name: American Physical Society
    Place of Publication: [College Park, Maryland]

Date

  • Creation: 2012-03-09

Language

  • English

Description

  • Content Description: This article discusses multiple coexisting intercalation structures of sodium in peitaxial graphene-SiC interfaces.
  • Physical Description: 5 p.

Subject

  • Keyword: graphene
  • Keyword: sodium
  • Keyword: chemical doping

Source

  • Journal: Physical Review B, 2012, College Park: American Physical Society

Citation

  • Publication Title: Physical Review Letters
  • Volume: 85
  • Issue: 12
  • Peer Reviewed: True

Collection

  • Name: UNT Scholarly Works
    Code: UNTSW

Institution

  • Name: UNT College of Arts and Sciences
    Code: UNTCAS

Rights

  • Rights Access: public

Resource Type

  • Article

Format

  • Text

Identifier

  • DOI: 10.1103/PhysRevB.85.125410
  • Archival Resource Key: ark:/67531/metadc132988

Degree

  • Academic Department: Physics
  • Academic Department: Chemistry

Note

  • Display Note: Copyright 2012 American Physical Society. The following article appeared in Physical Review B, 108:8, http://link.aps.org/doi/10.1103/PhysRevB.85.125410
  • Display Note: Abstract: We show using scanning tunneling microscopy, spectroscopy, and ab initio calculations that two intercalation structures coexist for Na in epitaxial graphene on SiC(0001). Intercalation takes place at room temperature, and Na electron dopes the graphene. It inserts in between single-layer graphene and the interfacial layer and also penetrates beneath the interfacial layer and decouples it to form a second graphene layer. Decoupling is accelerated by annealing and is verified by Na deposition onto the interface layer combined with computational modeling of the two new decoupled buffer layer structures.