Phonon dispersion of graphite by inelastic x-ray scattering

By M. Mohr, J. Maultzsch, E. Dobardžić, S. Reich, I. Milošević, M. Damnjanović, A. Bosak, M. Krisch, C. Thomsen. 2007

380 citations recorded by the source corpus.

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.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/d5dbb76ca01abb9d6fcbfa8b8911059b5530145d

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In Materials Chemistry

1. Feng Wang
2. D. Basov
3. Alessandra Lanzara
4. M. Fogler
5. Yuanbo Zhang
6. J. Bruneel
7. M. Couzi
8. A. Zettl

Citations in the corpus

• Giant phonon-induced conductance in scanning tunnelling spectroscopy of gate-tunable graphene (2008, background): “One possible attribution is the 67 meV out-of-plane acoustic graphene phonon modes located near the K / K ′ points in reciprocal spac”
• Colloquium: Graphene spectroscopy (2014, background): “, 2004) (symbols) compared with the experimental data for graphite (Mohr et al., 2007) (lines).”
• Intrinsic and extrinsic performance limits of graphene devices on SiO2. (2007, methodology): “g) or q ≈ K (intervalley scattering). The next lowest-energy modes after the q ≈ 0 acoustic modes are the zone boundary ZA phonon (q = K) at ħω ≈ 70 meV and the optical ZO mode (q = 0) at ħω ≈ 110 meV[23]. The optical ZO mode is consistent with the observed temperature dependence as per the fit to E”
• Raman Spectra of Carbon-Based Materials (from Graphite to Carbon Black) and of Some Silicone Composites (2015, background): “(ii) Frequency changes: As already explained, the dispersion of the frequencies of disorder induced modes follows the slope of the corresponding phonon branches [55].”