Continuum model of optical phonons in a nanotube

✍ Scribed by Michael A. Stroscio; Mitra Dutta; Daniel Kahn; Ki Wook Kim

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 69 KB
• Volume: 29
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.2001.0980

✦ Synopsis

The properties of nanotubes are of intense current interest due, in part, to the discovery of the carbon nanotube. In this paper, the optical phonons are modeled for a nanotube by treating the nanotube as a continuum medium. A quantization prescription is applied to facilitate the first determination of the quantum-mechanical normalizations of selected optical phonon modes. It is shown that normalization of the lowest azimuthal mode may be determined analytically. The deformation potentials describing carrier optical-phonon scattering are readily determined from these normalized continuum modes.