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Velocity-modulation control of electron-wave propagation in graphene
Arnaud Raoux, Marco Polini, Reza Asgari +3
Wave propagation control by spatial modulation of velocity has a long history in optics and acoustics. We address velocity-modulation control of electron wave propagation in graphe…
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…
Blockade and Counterflow Supercurrent in exciton-condensate Josephson junctions
Fabrizio Dolcini, Diego Rainis, Fabio Taddei +3
We demonstrate that perfect conversion between charged supercurrents in superconductors and neutral supercurrents in electron-hole pair condensates is possible via a new Andreev-li…
Electron-electron interactions in graphene bilayers
Fan Zhang, Hongki Min, Marco Polini +1
Electrons most often organize into Fermi-liquid states in which electron-electron interactions play an inessential role. A well known exception is the case of one-dimensional (1D)…
Influence of a Transport Current on Magnetic Anisotropy in Gyrotropic Ferromagnets
Ion Garate, Allan H. MacDonald
Current-induced torques are commonly used to manipulate non-collinear magnetization configurations. In this article we discuss current-induced torques present in a certain class of…
Dynamical response functions and collective modes of bilayer graphene
Giovanni Borghi, Marco Polini, Reza Asgari +1
Bilayer graphene (BLG) has recently attracted a great deal of attention because of its electrically tunable energy gaps and its unusual electronic structure. In this Letter we pres…
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…
Spin-Orbit Interactions in Bilayer Exciton-Condensate Ferromagnets
Y. -P. Shim, A. H. MacDonald
Bilayer electron-hole systems with unequal electron and hole densities are expected to have exciton condensate ground states with spontaneous spin-polarization in both conduction a…
Anomalous Hall effect
Naoto Nagaosa, Jairo Sinova, Shigeki Onoda +2
We present a review of experimental and theoretical studies of the anomalous Hall effect (AHE), focusing on recent developments that have provided a more complete framework for und…
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…
Electronic Cooling in Graphene
R. Bistritzer, A. H. MacDonald
Energy transfer to acoustic phonons is the dominant low-temperature cooling channel of electrons in a crystal.For cold neutral graphene we find that the weak cooling power of its a…
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…