The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Determination of LA and TO phonon dispersion relations of graphene near the Dirac point by double resonance Raman scattering
Abstract
Raman spectroscopy was used to determine the dispersion of the longitudinal acoustic (LA) and in-plane transverse optic phonon branches near the Dirac $K$ point of monolayer graphene from the analysis of the dispersion of two second-order Raman peaks involving the LA and TO phonons. We show that the velocities of the phonons involved in the double resonance Raman process are given by ${v}_{\mathit{LA}}=7.70\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}{v}_{F}$ and ${v}_{\mathit{TO}}=5.47\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}{v}_{F}$, where ${v}_{F}$ is the Fermi velocity of the associated electrons. The experimental results for the phonon dispersion in monolayer graphene are compared with those for turbostratic graphite and also with different theoretical models.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Cited by
Raman spectroscopy as a versatile tool for studying the properties of graphene
Ferrari, A. C., & Basko, D. M. (2013) · Nature Nanotechnology · doi:10.1038/nnano.2013.46 · Cited by 7,405
Raman Techniques: Fundamentals and Frontiers
Jones, R. R., Hooper, D. C., Zhang, L., Wolverson, D., & Valev, V. K. (2019) · Nanoscale Research Letters · doi:10.1186/s11671-019-3039-2 · Cited by 804
Evolution of the Raman spectra from single-, few-, and many-layer graphene with increasing disorder
Martins Ferreira, E. H., Moutinho, M. V. O., Stavale, F., Lucchese, M. M., Capaz, R. B., Achete, C. A., & Jorio, A. (2010) · Physical Review B · doi:10.1103/physrevb.82.125429 · Cited by 787
Luo, J., Liu, J., Zeng, Z., Ng, C. F., Ma, L., Zhang, H., Lin, J., Shen, Z., & Fan, H. J. (2013) · Nano Letters · doi:10.1021/nl403461n · Cited by 773
Raman characterization of defects and dopants in graphene
Beams, R., Gustavo Cançado, L., & Novotny, L. (2015) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/27/8/083002 · Cited by 709
Metadata
- Authors
- Mafra, D. L., Samsonidze, G., Malard, L. M., Elias, D. C., Brant, J. C., Plentz, F., Alves, E. S., & Pimenta, M. A.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2007-12-13
- Volume
- 76
- Issue
- 23
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2072240475
- Cited by
- 191
- References
- 1
- FWCI
- 4.02
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Determination of LA and TO phonon dispersion relations of graphene near the Dirac point by double resonance Raman scattering. https://app.cochat.ai/papers/10.1103/physrevb.76.233407
- The paper
- Mafra, D. L., Samsonidze, G., Malard, L. M., Elias, D. C., Brant, J. C., Plentz, F., Alves, E. S., & Pimenta, M. A. (2007). Determination of LA and TO phonon dispersion relations of graphene near the Dirac point by double resonance Raman scattering. Physical Review B. https://doi.org/10.1103/physrevb.76.233407
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
