The phonon dispersion of graphite by inelastic x-ray scattering

Bibliographic Details
Title: The phonon dispersion of graphite by inelastic x-ray scattering
Authors: Mohr, M., Maultzsch, J., Dobardzic, E., Reich, S., Milosevic, I., Damnjanovic, M., Bosak, A., Krisch, M., Thomsen, C.
Publication Year: 2007
Collection: Condensed Matter
Subject Terms: Condensed Matter - Materials Science
More Details: We present the full in-plane phonon dispersion of graphite obtained from inelastic x-ray scattering, including the optical and acoustic branches, as well as the mid-frequency range between the $K$ and $M$ points in the Brillouin zone, where experimental data have been unavailable so far. The existence of a Kohn anomaly at the $K$ point is further supported. We fit a fifth-nearest neighbour force-constants model to the experimental data, making improved force-constants calculations of the phonon dispersion in both graphite and carbon nanotubes available.
Comment: 7 pages; submitted to Phys. Rev. B
Document Type: Working Paper
DOI: 10.1103/PhysRevB.76.035439
Access URL: http://arxiv.org/abs/0705.2418
Accession Number: edsarx.0705.2418
Database: arXiv
More Details
DOI:10.1103/PhysRevB.76.035439