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Robustness of the optical-conductivity sum rule in Bilayer Graphene
L. Benfatto, S. G. Sharapov, J. P. Carbotte
We calculate the optical sum associated with the in-plane conductivity of a graphene bilayer. A bilayer asymmetry gap generated in a field-effect device can split apart valence and…
Bosonic spectral density of epitaxial thin-film La1.83Sr0.17CuO4 superconductors from infrared conductivity measurements
J. Hwang, E. Schachinger, J. P. Carbotte +3
We use optical spectroscopy to investigate the excitations responsible for the structure in the optical self-energy of thin epitaxial films of La1.83Sr0.17CuO4. Using Eliashberg fo…
Role of magnetism and electron-lattice interactions in STM spectra of cuprates
J. Hwang, T. Timusk, J. P. Carbotte
The study of bosonic modes that couple to the charge carriers is a key element in understanding superconductivity. Lee et al. have used atomic-resolution scanning tunneling spectro…
Magneto-optical conductivity in Graphene
V. P. Gusynin, S. G. Sharapov, J. P. Carbotte
Landau level quantization in graphene reflects the Dirac nature of its quasiparticles and has been found to exhibit an unusual integer quantum Hall effect. In particular the lowest…
Sum Rules for the Optical and Hall Conductivity in Graphene
V. P. Gusynin, S. G. Sharapov, J. P. Carbotte
Graphene has two atoms per unit cell with quasiparticles exhibiting the Dirac-like behavior. These properties lead to interband in addition to intraband optical transitions and mod…