Inhomogeneous optical absorption around the K point in graphite and carbon nanotubes

A. Grüneis; Riichiro Saito; Ge G. Samsonidze; T. Kimura; M. A. Pimenta; A. Jorio; A. G. Souza Filho; G. Dresselhaus; M. S. Dresselhaus

Inhomogeneous optical absorption around the K point in graphite and carbon nanotubes

A. Grüneis, Riichiro Saito, Ge G. Samsonidze, T. Kimura, M. A. Pimenta, A. Jorio, A. G. Souza Filho, G. Dresselhaus, M. S. Dresselhaus

SCI - Physics

Research output: Contribution to journal › Article › peer-review

173 Citations (Scopus)

Abstract

The optical absorption spectra of π electrons are calculated for graphite and carbon nanotubes. Particular attention is paid to the processes contributing to the optical absorption as a function of the electron wave vector k and light polarization direction. The optical absorption amplitude around the K point in the Brillouin zone has a node in the two-dimensional Brillouin zone of graphite. The formula for the absorption scattering matrix around the K point is given analytically by expanding the matrix element into a Taylor series. The chirality dependence of the absorption matrix element of a single-wall carbon nanotube is presented.

Original language	English
Article number	165402
Pages (from-to)	1654021-1654027
Number of pages	7
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	67
Issue number	16
Publication status	Published - 2003 Apr 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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abstract = "The optical absorption spectra of π electrons are calculated for graphite and carbon nanotubes. Particular attention is paid to the processes contributing to the optical absorption as a function of the electron wave vector k and light polarization direction. The optical absorption amplitude around the K point in the Brillouin zone has a node in the two-dimensional Brillouin zone of graphite. The formula for the absorption scattering matrix around the K point is given analytically by expanding the matrix element into a Taylor series. The chirality dependence of the absorption matrix element of a single-wall carbon nanotube is presented.",

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AU - Grüneis, A.

AU - Saito, Riichiro

AU - Samsonidze, Ge G.

AU - Kimura, T.

AU - Pimenta, M. A.

AU - Jorio, A.

AU - Souza Filho, A. G.

AU - Dresselhaus, G.

AU - Dresselhaus, M. S.

PY - 2003/4/1

Y1 - 2003/4/1

N2 - The optical absorption spectra of π electrons are calculated for graphite and carbon nanotubes. Particular attention is paid to the processes contributing to the optical absorption as a function of the electron wave vector k and light polarization direction. The optical absorption amplitude around the K point in the Brillouin zone has a node in the two-dimensional Brillouin zone of graphite. The formula for the absorption scattering matrix around the K point is given analytically by expanding the matrix element into a Taylor series. The chirality dependence of the absorption matrix element of a single-wall carbon nanotube is presented.

AB - The optical absorption spectra of π electrons are calculated for graphite and carbon nanotubes. Particular attention is paid to the processes contributing to the optical absorption as a function of the electron wave vector k and light polarization direction. The optical absorption amplitude around the K point in the Brillouin zone has a node in the two-dimensional Brillouin zone of graphite. The formula for the absorption scattering matrix around the K point is given analytically by expanding the matrix element into a Taylor series. The chirality dependence of the absorption matrix element of a single-wall carbon nanotube is presented.

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Inhomogeneous optical absorption around the K point in graphite and carbon nanotubes

Abstract

ASJC Scopus subject areas

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