Raman spectra of out-of-plane phonons in bilayer graphene

Kentaro Sato, Jin Sung Park, Riichiro Saito, Chunxiao Cong, Ting Yu, Chun Hung Lui, Tony F. Heinz, Gene Dresselhaus, Mildred S. Dresselhaus

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50 Citations (Scopus)

Abstract

The double resonance Raman spectra of the overtone of the out-of-plane tangential optical (oTO) phonon and of combinations of the LO, ZO, and ZA phonons with one another are calculated for bilayer graphene. In the case of the bilayer graphene, these Raman peaks are observed in the energy region between 1600 and 1800 cm-1. We obtain results for both the fixed q=0 and the dispersive q=2k peaks of the overtones of the oTO phonon of bilayer graphene. We calculate the double resonance Raman spectra of the combination modes coming from the LO, iTO, LA, and iTA phonons in bilayer graphene. The calculated Raman peaks are compared with the experimental results.

Original languageEnglish
Article number035419
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume84
Issue number3
DOIs
Publication statusPublished - 2011 Jul 11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Sato, K., Park, J. S., Saito, R., Cong, C., Yu, T., Lui, C. H., Heinz, T. F., Dresselhaus, G., & Dresselhaus, M. S. (2011). Raman spectra of out-of-plane phonons in bilayer graphene. Physical Review B - Condensed Matter and Materials Physics, 84(3), [035419]. https://doi.org/10.1103/PhysRevB.84.035419