A1 Journal article (refereed)
Evidence for Graphene Edges Beyond Zigzag and Armchair (2009)

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

JYU authors or editors

Publication details

All authors or editors: Koskinen, Pekka; Malola, Sami; Häkkinen, Hannu

Journal or series: Physical Review B

ISSN: 2469-9950

eISSN: 2469-9969

Publication year: 2009

Volume: 80

Issue number: 7

Article number: 073401

Publisher: American Physical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevB.80.073401

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/98404

Publication is parallel published:  https://doi.org/10.48550/arXiv.0906.068

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.

Keywords: graphene

Contributing organizations

Ministry reporting: Yes

Preliminary JUFO rating: Not rated