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Curvature, hybridization, and STM images of carbon nanotubes

Alex Kleiner·Sebastian Eggert
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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.

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Alex Kleiner, Sebastian Eggert. 2001-04-30. Curvature, hybridization, and STM images of carbon nanotubes. https://doi.org/10.1103/physrevb.64.113402

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