Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1593809 | Solid State Communications | 2009 | 4 Pages |
Abstract
In this work, by using different laser excitation energies, we obtain important electronic and vibrational properties of mono- and bi-layer graphene. For monolayer graphene, we determine the phonon dispersion near the Dirac point for the in-plane transverse optical (iTO) mode. This result is compared with recent calculations that take into account electron–electron correlations for the phonon dispersion around the K point. For bilayer graphene we extract the Slonczewski–Weiss–McClure band parameters and compare them with recent infrared measurements. We also analyze the second-order feature in the Raman spectrum for trilayer graphene.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
L.M. Malard, D.L. Mafra, S.K. Doorn, M.A. Pimenta,