The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Nonadiabatic Kohn Anomaly in a Doped Graphene Monolayer
Open accessAbstract
We compute, from first principles, the frequency of the E(2g), Gamma phonon (Raman G band) of graphene, as a function of the charge doping. Calculations are done using (i) the adiabatic Born-Oppenheimer approximation and (ii) time-dependent perturbation theory to explore dynamic effects beyond this approximation. The two approaches provide very different results. While the adiabatic phonon frequency weakly depends on the doping, the dynamic one rapidly varies because of a Kohn anomaly. The adiabatic approximation is considered valid in most materials. Here, we show that doped graphene is a spectacular example where this approximation miserably fails.
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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
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Zhang, Y., Tan, Y.-W., Stormer, H. L., & Kim, P. (2005) · Nature · doi:10.1038/nature04235 · Cited by 13,435
Cited by
The electronic properties of graphene
Castro Neto, A. H., Guinea, F., Peres, N. M. R., Novoselov, K. S., & Geim, A. K. (2009) · Reviews of Modern Physics · doi:10.1103/revmodphys.81.109 · Cited by 24,803
“The renormalized phonon frequen y, Ω0(q), is givenby (Ando, 2006a, 2007b; Castro Neto and Guinea, 2007;Lazzeri and Mauri, 2006; Saha et al., 2007): Ω0(q) ≈ ω0 − 2β2 a2ω0 χ(q, ω0) , (209)where ω0 is the bare phonon frequen y, and the ele tron-phonon polarization fun tion is given by: χ(q, ω)=…”
BackgroundRaman 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
Scaling laws for the band gap and optical response of phosphorene nanoribbons
Tran, V., & Yang, L. (2014) · Physical Review B · doi:10.1103/physrevb.89.245407 · Cited by 296
Metadata
- Authors
- Lazzeri, M., & Mauri, F.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-12-29
- Volume
- 97
- Issue
- 26
- Pages
- 266407-266407
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2045372895
- Cited by
- 563
- References
- 2
- FWCI
- 14.97
- Type
- journal article
- Language
- en
- Open access
- green
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- Lazzeri, M., & Mauri, F. (2006). Nonadiabatic Kohn Anomaly in a Doped Graphene Monolayer. Physical Review Letters. https://doi.org/10.1103/physrevlett.97.266407
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