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Renormalized Landau Levels and Particle-Hole Symmetry in Graphene
Yafis Barlas, Wei-Cheng Lee, Kentato Nomura +1
In this proceedings paper we report on a calculation of graphene's Landau levels in a magnetic field. Our calculations are based on a self-consistent Hartree-Fock approximation for…
Berry Phase Coupling and the Cuprate Neutron Scattering Resonance
Wei-Cheng Lee, A. H. MacDonald
We examine the influence of coupling between particle-hole and particle-particle spin fluctuations on the inelastic neutron scattering resonance (INSR) in cuprate superconductors i…
Origin of Universal Optical Conductivity and Optical Stacking Sequence Identification in Multilayer Graphene
Hongki Min, A. H. MacDonald
We show that the origin of the universal optical conductivity in a normal -layer graphene multilayer is an emergent chiral symmetry which guarantees that in both…
Drude weight, plasmon dispersion, and pseudospin response in doped graphene sheets
Marco Polini, A. H. MacDonald, G. Vignale
Plasmons in ordinary electron liquids are collective excitations whose long-wavelength limit is rigid center-of-mass motion with a dispersion relation that is, as a consequence of…