Evidence for Graphene Edges Beyond Zigzag and Armchair
Abstract
The edges of nanoscopic objects determine most of their properties. For this reason the edges of honeycomb carbon—always considered either zigzag- or armchairlike—need special attention. In this Brief Report we provide experimental evidence confirming a previous unexpected prediction: zigzag is a metastable edge as its planar reconstruction lowers energy and forms the most stable graphene edge. Our evidence is based on reanalyzing a recent experiment. Since the reconstructed edge, along with other unconventional edges we discuss, has distinct chemical properties, this discovery urges for care in experiments and theory—we must enter the realm beyond zigzag and armchair.
Main Authors
Format
Articles
Research article
Published
2009
Series
Subjects
Publication in research information system
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202411137247Use this for linking
Review status
Peer reviewed
ISSN
2469-9950
DOI
https://doi.org/10.1103/PhysRevB.80.073401
Language
English
Published in
Physical Review B
Citation
- Koskinen, P., Malola, S., & Häkkinen, H. (2009). Evidence for Graphene Edges Beyond Zigzag and Armchair. Physical Review B, 80(7), Article 073401. https://doi.org/10.1103/PhysRevB.80.073401
License
Additional information about funding
We acknowledge the Academy of Finland for funding.
Copyright© 2009 American Physical Society