publication . Preprint . 2014

Long-wavelength optical phonon behavior in uniaxial strained graphene: Role of electron-phonon interaction

Assili, Mohamed; Haddad, Sonia;
Open Access English
  • Published: 12 Mar 2014
We derive the frequency shifts and the broadening of $\Gamma$ point longitudinal optical (LO) and transverse optical (TO) phonon modes, due to electron-phonon interaction, in graphene under uniaxial strain as a function of the electron density and the disorder amount. We show that, in the absence of a shear strain component, such interaction gives rise to a lifting of the degeneracy of the LO and TO modes which contributes to the splitting of the G Raman band. The anisotropy of the electronic spectrum, induced by the strain, results in a polarization dependence of the LO and TO modes. This dependence is in agreement with the experimental results showing a period...
arXiv: Condensed Matter::Materials Science
free text keywords: Condensed Matter - Mesoscale and Nanoscale Physics
Download from
48 references, page 1 of 4

1 K. S. Novoselov, A. K. Geim, S. V. Morozov,D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, and A. A. Firsov, Science, 306 666 (2004) ,K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, M. I. Katsnelson, I. V. Gregorieva, S. V. Dubonos, and A. A. Firsov, Nature 438, 197 (2005).

2 A. H. Castro Neto, F. Guinea, N. M. R. Peres, K. S. Novoselov, and A. K. Geim, Rev. Mod. Phys. 81, 109 (2009).

3 M. Goerbig, Rev. Mod. Phys. 83, 1193 (2011).

4 F. M. D. Pellegrino, G. G. N. Angilella, and R. Pucci, Phys. Rev. B 81 035411 (2010).

5 N. M. R. Peres, Rev. Mod. Phys. 82,2673 (2010).

6 M. Mohr, K. Papagelis, J. Maultzsch, and C. Thomsen, Phys. Rev. B 80, 205410 (2009).

7 Y. C. Cheng, Z. Y. Zhu, G. S. Huang, and U. Schwingenschlogl, Phys. Rev. B 83, 115449 (2011).

8 M. Vozmediano, M. Katsnelson, and F. Guinea, Phys. Rep. 496, 109 (2010).

9 F. de Juan, M. Sturla, and M. A. H. Vozmediano, Phys. Rev. Lett. 108, 227205 (2012).

10 L. M. Malard, M. A. Pimenta, G. Dresselhaus, and M. S. Dresselhaus, Physics Reports 473, 51 (2008).

11 A. Jorio, M. S. Dresselhaus, R. Saito, and G. Dresselhaus, Raman Spectroscopy in Graphene Related Systems, (Wiley Eds.) (2011).

12 A. C. Ferrari, and D. Basko, Nature Nanotechnology, 8, 235 (2013)

13 N. Ferralis, R. Maboudian, and C. Carraro, Phys. Rev. Lett. 101, 156801 (2008).

14 Z. H. Ni, W. Chen, X. F. Fan, J. L. Kuo, T. Yu, A. T. S. Wee, and Z. X. Shen, Phys. Rev. B 77, 115416 (2008).

15 M. Huang, H. Yan, C. Chen, D. Song, T. F. Heinz, and J. Hone, Proc. Natl. Acad. Sci. U.S.A. 106, 7304 (2009).

48 references, page 1 of 4
Powered by OpenAIRE Research Graph
Any information missing or wrong?Report an Issue