Curvature, hybridization, and STM images of carbon nanotubes

Preprint

1 May 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0105002

Abstract

The curvature effects in carbon nanotubes are studied analytically as a function of chirality. The pi-orbitals are found to be significantly rehybridized 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-orbitals should be observable by atomic resolution scanning tunneling microscopy measurements.

Keywords

CURVATURE EFFECTS
CARBON NANOTUBES
BAND STRUCTURE
HYBRIDIZATION
PI ORBITALS
STM IMAGES
CHIRALITY
TUNNELING

All Related Versions

Version 1, 2001-05-01, ArXiv
Published version: Physical Review B, 64 (11), 113402.