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

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This article discusses multiple coexisting intercalation structures of sodium in peitaxial graphene-SiC interfaces.

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5 p.

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Sandin, Andreas; Jayasekera, Thushari; Rowe, J. E.; Kim, Ki Wook; Buongiorno Nardelli, Marco & Dougherty, Daniel B. March 9, 2012.

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This article discusses multiple coexisting intercalation structures of sodium in peitaxial graphene-SiC interfaces.

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5 p.

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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

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.

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

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

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The Scholarly Works Collection is home to materials from the University of North Texas community's research, creative, and scholarly activities and serves as UNT's Open Access Repository. It brings together articles, papers, artwork, music, research data, reports, presentations, and other scholarly and creative products representing the expertise in our university community.** Access to some items in this collection may be restricted.**

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  • March 9, 2012

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  • Jan. 16, 2013, 12:47 p.m.

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  • April 2, 2014, 4:10 p.m.

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Sandin, Andreas; Jayasekera, Thushari; Rowe, J. E.; Kim, Ki Wook; Buongiorno Nardelli, Marco & Dougherty, Daniel B. Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces, article, March 9, 2012; [College Park, Maryland]. (digital.library.unt.edu/ark:/67531/metadc132988/: accessed February 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.