Anisotropy in the phonon dispersion relations of graphite and carbon nanotubes measured by raman spectroscopy

Georgii G. Samsonidze; Riichiro Saito; Ado Jorio; Antonio G. Souza Filho; Alexander Grüneis; Marcos A. Pimenta; Gene Dresselhaus; Mildred S. Dresselhaus

Anisotropy in the phonon dispersion relations of graphite and carbon nanotubes measured by raman spectroscopy

Georgii G. Samsonidze, Riichiro Saito, Ado Jorio, Antonio G. Souza Filho, Alexander Grüneis, Marcos A. Pimenta, Gene Dresselhaus, Mildred S. Dresselhaus

Research output: Contribution to journal › Conference article

Abstract

The possible semiconducting device use of single wall carbon nanotubes (SWNTs) requires a technique for the determination of the exact structure of the nanotubes assembled in the device configuration. Raman spectroscopy has been established as a precise and non-destructive tool for the characterization of graphitic nanostructures. Double resonance theory, which is used to explain the dispersive nature of the Raman bands, has attracted much attention for its potential use for the characterization of the electronic and phonon spectra of these nanostructures. Dispersive features in the Raman spectra of low dimensional graphitic materials, such as carbon nanotubes. can be used to measure directly the anisotropy, or the trigonal warping effect, in the phonon dispersion relations about the hexagonal corner of the Brillouin zone (BZ) of graphite.

Original language	English
Pages (from-to)	673-678
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	737
Publication status	Published - 2003 Jul 25
Externally published	Yes
Event	Quantum Confined Semiconductor Nanostructures - Boston MA, United States Duration: 2002 Dec 2 → 2002 Dec 5

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Samsonidze, G. G., Saito, R., Jorio, A., Souza Filho, A. G., Grüneis, A., Pimenta, M. A., Dresselhaus, G., & Dresselhaus, M. S. (2003). Anisotropy in the phonon dispersion relations of graphite and carbon nanotubes measured by raman spectroscopy. Materials Research Society Symposium - Proceedings, 737, 673-678.

Anisotropy in the phonon dispersion relations of graphite and carbon nanotubes measured by raman spectroscopy. / Samsonidze, Georgii G.; Saito, Riichiro; Jorio, Ado; Souza Filho, Antonio G.; Grüneis, Alexander; Pimenta, Marcos A.; Dresselhaus, Gene; Dresselhaus, Mildred S.

In: Materials Research Society Symposium - Proceedings, Vol. 737, 25.07.2003, p. 673-678.

Research output: Contribution to journal › Conference article

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abstract = "The possible semiconducting device use of single wall carbon nanotubes (SWNTs) requires a technique for the determination of the exact structure of the nanotubes assembled in the device configuration. Raman spectroscopy has been established as a precise and non-destructive tool for the characterization of graphitic nanostructures. Double resonance theory, which is used to explain the dispersive nature of the Raman bands, has attracted much attention for its potential use for the characterization of the electronic and phonon spectra of these nanostructures. Dispersive features in the Raman spectra of low dimensional graphitic materials, such as carbon nanotubes. can be used to measure directly the anisotropy, or the trigonal warping effect, in the phonon dispersion relations about the hexagonal corner of the Brillouin zone (BZ) of graphite.",

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AU - Grüneis, Alexander

AU - Pimenta, Marcos A.

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