Curvature, hybridization, and STM images of carbon nanotubes - art. no. 113402

Citation
A. Kleiner et S. Eggert, Curvature, hybridization, and STM images of carbon nanotubes - art. no. 113402, PHYS REV B, 6411(11), 2001, pp. 3402
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
0163-1829 → ACNP
Volume
6411
Issue
11
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010915)6411:11<3402:CHASIO>2.0.ZU;2-C
Abstract
The curvature effects in carbon nanotubes are studied analytically as a fun ction of chirality. The pi orbitals are found to be significantly rehybridi zed in all tubes, so that they are never normal to the tubes' surface. This results in a curvature induced gap in the electronic band structure, which turns out to be larger than previous estimates. The tilting of the pi orbi tals should be observable by atomic resolution scanning tunneling microscop y measurements.