Issue
EPL
Volume 77, Number 4, February 2007
Article Number 47002
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI http://dx.doi.org/10.1209/0295-5075/77/47002
Published online 12 February 2007
EPL, 77 (2007) 47002
DOI: 10.1209/0295-5075/77/47002

Electronic properties of curved graphene sheets

A. Cortijo1 and M. A. H. Vozmediano2

1  Unidad Asociada CSIC-UC3M, Instituto de Ciencia de Materiales de Madrid CSIC - Cantoblanco E-28049 Madrid, Spain
2  Unidad Asociada CSIC-UC3M, Universidad Carlos III de Madrid - E-28911 Leganés, Madrid, Spain


received 20 November 2006; accepted in final form 14 December 2006; published February 2007
published online 12 February 2007

Abstract
A model is proposed to study the electronic structure of slightly curved graphene sheets with an arbitrary number of pentagon-heptagon pairs and Stone-Wales defects based on a cosmological analogy. The disorder induced by curvature produces characteristic patterns in the local density of states that can be observed in scanning tunnel and transmission electron microscopy.

PACS
75.10.Jm - Quantized spin models .
75.10.Lp - Band and itinerant models .
75.30.Ds - Spin waves .

© Europhysics Letters Association 2007