Universal geometric classification of armchair honeycomb nanoribbons by their properties in a staggered sublattice potential

O'Brien T.E., Zhang C. and Wright A.R. (2013) Universal geometric classification of armchair honeycomb nanoribbons by their properties in a staggered sublattice potential. Applied Physics Letters, 103 17: 171608-1-171608-4. doi:10.1063/1.4827339

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Author O'Brien T.E.
Zhang C.
Wright A.R.
Title Universal geometric classification of armchair honeycomb nanoribbons by their properties in a staggered sublattice potential
Journal name Applied Physics Letters   Check publisher's open access policy
ISSN 0003-6951
1077-3118
Publication date 2013-10-01
Year available 2013
Sub-type Article (original research)
DOI 10.1063/1.4827339
Open Access Status File (Author Post-print)
Volume 103
Issue 17
Start page 171608-1
End page 171608-4
Total pages 4
Place of publication Melville, United States
Publisher American Institute of Physics
Language eng
Abstract We demonstrate the topological band-gap dependence of armchair honeycomb nanoribbons in a staggered sublattice potential. A scaling law is presented to quantify the band gap variation with potential strength. All armchair nanoribbons are described by one of three distinct classes depending on their width, consistent with previous classifications, namely, the well known massless Dirac condition, potentially gapless, and gapless-superlattice. The ability to tune and, in all cases close, the band-gap via external probes makes our classification particularly relevant experimentally. We propose several systems in which these results should shed considerable light, which have all already been experimentally realized.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2014 Collection
 
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