Optical and loss spectra of carbon nanotubes: Depolarization effects and intertube interactions

TitleOptical and loss spectra of carbon nanotubes: Depolarization effects and intertube interactions
Publication TypePalaiseau Article
Acknowledgements

None

Author Address

Marinopoulos, AG (Reprint Author), Ecole Polytech, CEA, Solides Irradies Lab, CNRS,UMR 7642, F-91128 Palaiseau, France. Ecole Polytech, CEA, Solides Irradies Lab, CNRS,UMR 7642, F-91128 Palaiseau, France. Univ Pais Vasco, Fac Quim, Dept Fis Mat, Ctr Mixto CSIC UPV EHU, San Sebastian 20018, Spain. Donostia Int Phys Ctr, San Sebastian 20018, Spain.

DOI10.1103/PhysRevLett.91.046402
Marinopoulos, A-G, Reining, L, Rubio, A, Vast, N
Year of Publication2003
JournalPhys. Rev. Lett.
Volume91
URLhttp://dx.doi.org/10.1103/PhysRevLett.91.046402
Keywordspaper
Abstract

We performed ab initio calculations of the anisotropic dielectric response of small-diameter single-walled carbon nanotubes in the framework of time-dependent density-functional theory. The calculated optical spectra are in very good agreement with experiment, both concerning absolute peak positions and anisotropy effects. The latter can only be described correctly when crystal local-field effects ({''}depolarization{''} effects) are fully taken into account. Moreover, interactions between the tubes can strongly modify their absorption and electron energy-loss spectra.

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