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Theory of electron spin resonance in bulk topological insulators Bi2Se3, Bi2Te3 and Sb2Te3
O. Ly, D. M. Basko
We report a theoretical study of electron spin resonance in bulk topological insulators, such as Bi2Se3, Bi2Te3 and Sb2Te3. Using the effective four-band model, we find the electro…
Raman spectroscopy as a versatile tool for studying the properties of graphene
Andrea C. Ferrari, Denis M. Basko
Raman spectroscopy is an integral part of graphene research. It is used to determine the number and orientation of layers, the quality and types of edge, and the effects of perturb…
Calculation of the Raman G peak intensity in monolayer graphene: role of Ward identities
Denis Basko
The absolute integrated intensity of the single-phonon Raman peak at 1580 cm^{-1} is calculated for a clean graphene monolayer. The resulting intensity is determined by the trigona…
Graphene Mode-Locked Ultrafast Laser
Z. Sun, T. Hasan, F. Torrisi +6
Graphene is at the center of a significant research effort. Near-ballistic transport at room temperature and high mobility make it a potential material for nanoelectronics. Its ele…
Electron-electron interactions and doping dependence of the two-phonon Raman intensity in graphene
D. M. Basko, S. Piscanec, A. C. Ferrari
Raman spectroscopy is a fast, non-destructive means to characterize graphene samples. In particular, the Raman spectra show a significant dependence on doping. While the change in…
Boundary problems for Dirac electrons and edge-assisted Raman scattering in graphene
D. M. Basko
The paper reports a theoretical study of scattering of electrons by edges in graphene and its effect on Raman scattering. First, effective models are discussed for translationally…
Uniaxial Strain in Graphene by Raman Spectroscopy: G peak splitting, Gruneisen Parameters and Sample Orientation
T. M. G. Mohiuddin, A. Lombardo, R. R. Nair +10
Graphene is the two-dimensional building block for carbon allotropes of every other dimensionality. Since its experimental discovery, graphene continues to attract enormous interes…
Raman Spectroscopy of Graphene Edges
C. Casiraghi, A. Hartschuh, H. Qian +5
Graphene edges are of particular interest, since their chirality determines the electronic properties. Here we present a detailed Raman investigation of graphene flakes with well d…
Resonant low-energy electron scattering on short-range impurities in graphene
D. M. Basko
Resonant scattering of electrons with low energies (as compared to the bandwidth) on a single neutral short-range impurity in graphene is analyzed theoretically, taking into accoun…
Theory of resonant multiphonon Raman scattering in graphene
D. M. Basko
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…