Theory of resonant multiphonon Raman scattering in graphene monolayers

By D. Basko, I. Aleiner. 2007

157 citations recorded by the source corpus.

We present a detailed calculation of intensities of two-phonon and four-phonon Raman peaks in graphene. Writing the low-energy hamiltonian of the interaction of electrons with the crystal vibrations and the electromagnetic field from pure symmetry considerations, we describe the system in terms of just a few independent coupling constants, considered to be parameters of the theory. The electron scattering rate is introduced phenomenologically as another parameter. The results of the calculation are used to extract information about these parameters from the experimentally measured Raman peak intensities.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/b83cfe170161acb458b2cd0c7c78c02cd13ccd0b

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

Citations in the corpus

Graphene mode-locked ultrafast laser. (2009, background): “photoexcited electron to be [( /2)(EL/2 ) ( K/ 2)(EL/2 K)] 1 40 fs.(33) From the thermal balance equation”
Colloquium: Graphene spectroscopy (2014, background): “A detailed theory of the G-mode Raman signal was presented in Basko (2008, 2009); Basko and Aleiner (2008); and Basko et al. (2009).”
Interaction between graphene and copper substrate: The role of lattice orientation (2014, methodology): “A simple formula for the FWHM(2D) calculation was provided by Basko, though only conical bands were taken into account [61]: 𝐹𝑊𝐻𝑀(2𝐷) = 0.77 𝜐𝑝ℎ 𝜐𝐹 8𝛾𝑒−𝑝ℎ (2) Where υph and υF are the phonon and Fermi group velocities, respectively, and γe-ph is a broadening parameter due to electron-pho”
Colloquium: The transport properties of graphene: An introduction (2010, methodology): “If we now repeat the same analysis for graphene, we obtain (Adam et al., 2008, 2007; Basko, 2008; Peres et al., 2007b; Stauber et al., 2007): σ0 = 2e2τvF kF /h, where we have now included the contributions of both spin and valley degeneracies.”
Defect characterization in graphene and carbon nanotubes using Raman spectroscopy (2010, background): “Some theoretical work has been done (Sato et al. 2006; Basko 2008) on this topic, but the results are still not at the level of explaining actual experimental observations.”
Novel effects of strains in graphene and other two dimensional materials (2015, background): “The 3D point group of the graphene crystal is D6h = D6 ⊗ i = C6v ⊗ σh.”