title: Theory of Graphene Raman Scattering.
abstract: Raman scattering plays a key role in unraveling the quantum dynamics of graphene, perhaps the most promising material of recent times. It is crucial to correctly interpret the meaning of the spectra. It is therefore very surprising that the widely accepted understanding of Raman scattering, i.e., Kramers-Heisenberg-Dirac theory, has never been applied to graphene. Doing so here, a remarkable mechanism we term"transition sliding" is uncovered, explaining the uncommon brightness of overtones in graphene. Graphene's dispersive and fixed Raman bands, missing bands, defect density and laser frequency dependence of band intensities, widths of overtone bands, Stokes, anti-Stokes anomalies, and other known properties emerge simply and directly.
authors.affiliation: Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States.|Department of Chemistry and Chemical Biology, Harvard University , Cambridge, Massachusetts 02138, United States.
authors.forename: Eric J
authors.initials: EJ
authors.lastname: Heller
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University , Cambridge, Massachusetts 02138, United States.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Chemistry and Chemical Biology, Harvard University , Cambridge, Massachusetts 02138, United States.
authors.forename: Lucas
authors.initials: L
authors.lastname: Kocia
authors.affiliation: Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States.
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States.
authors.forename: Shiang
authors.initials: S
authors.lastname: Fang
authors.affiliation: Department of Physics, Oklahoma State University , Stillwater, Oklahoma 74078, United States.
authors.forename: Mario
authors.initials: M
authors.lastname: Borunda
authors.affiliation: Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States.
authors.forename: Efthimios
authors.initials: E
authors.lastname: Kaxiras
keywords: Raman spectroscopy; UV−vis spectroscopy; quantum chemistry; resonance theory; theoretical chemistry