Anisotropy and interplane interactions in the dielectric response of graphite

TitleAnisotropy and interplane interactions in the dielectric response of graphite
Publication TypePalaiseau Article
Acknowledgements

None

Author Address

Marinopoulos, AG (Reprint Author), Ecole Polytech, Solides Irradies Lab, CEA, CNRS,UMR 7642, F-91128 Palaiseau, France. Ecole Polytech, Solides Irradies Lab, CEA, 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. Inst Festkorper & Werkstofforsch, D-01171 Dresden, Germany. Univ Vienna, Inst Mat Phys, A-01090 Vienna, Austria.

DOI10.1103/PhysRevLett.89.076402
Marinopoulos, A-G, Reining, L, Olevano, V, Rubio, A, Pichler, T, Liu, X, Knupfer, M, Fink, J
Year of Publication2002
JournalPhys. Rev. Lett.
Volume89
URLhttp://dx.doi.org/10.1103/PhysRevLett.89.076402
Keywordspaper
Abstract

We determined the anisotropic dielectric response of graphite by means of time-dependent density-functional theory and high-resolution valence electron energy-loss spectroscopy. The calculated loss function was in very good agreement with the experiment for a wide range of momentum-transfer orientations with respect to the graphitic basal planes, provided that local-field effects were included in the response. The calculations also showed strong effects of the interlayer Coulomb interaction on the total pi+sigma plasmon. This finding must be taken into account for the explanation of recent loss spectra of carbon nanotube materials.

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