1. Multilayer epitaxial graphene grown on the surface; structure and electronic properties
- Author
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Antonio Tejeda, E. H. Conrad, Patrick Soukiassian, D. Martinotti, J. Hass, Jeremy Hicks, M. C. Clark, P. Le Fèvre, François Bertran, Mike Sprinkle, Amina Taleb-Ibrahimi, and Holly N. Tinkey
- Subjects
Materials science ,Acoustics and Ultrasonics ,Graphene ,Stacking ,Nanotechnology ,Electronic structure ,Condensed Matter Physics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,law.invention ,chemistry.chemical_compound ,chemistry ,law ,Silicon carbide ,Graphite ,Thin film ,Bilayer graphene ,Graphene nanoribbons - Abstract
We review the progress towards developing epitaxial graphene as a material for carbon electronics. In particular, we discuss improvements in epitaxial graphene growth, interface control and the understanding of multilayer epitaxial graphene's (MEG's) electronic properties. Although graphene grown on both polar faces of SiC will be discussed, our discussions will focus on graphene grown on the C-face of SiC. The unique properties of C-face MEG have become apparent. These films behave electronically like a stack of nearly independent graphene sheets rather than a thin Bernal stacked graphite sample. The origins of multilayer graphene's electronic behaviour are its unique highly ordered stacking of non-Bernal rotated graphene planes. While these rotations do not significantly affect the inter-layer interactions, they do break the stacking symmetry of graphite. It is this broken symmetry that leads to each sheet behaving like isolated graphene planes.
- Published
- 2010
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