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Quarter-Filled Honeycomb Lattice with a Quantized Hall Conductance
Ganpathy Murthy, Efrat Shimshoni, R. Shankar +1
We study a generic two-dimensional hopping model on a honeycomb lattice with strong spin-orbit coupling, without the requirement that the half-filled lattice be a Topological Insul…
Power law Kohn anomaly in undoped graphene induced by Coulomb interactions
Fernando de Juan, Herbert A. Fertig
Phonon dispersions generically display non-analytic points, known as Kohn anomalies, due to electron-phonon interactions. We analyze this phenomenon for a zone boundary phonon in u…
Floquet Spectrum and Transport Through an Irradiated Graphene Ribbon
Zhenghao Gu, H. A. Fertig, Daniel P. Arovas +1
Graphene subject to a spatially uniform, circularly-polarized electric field supports a Floquet spectrum with properties akin to those of a topological insulator, including non-van…
Transport in superlattices on single layer graphene
P. Burset, A. Levy Yeyati, L. Brey +1
We study transport in undoped graphene in the presence of a superlattice potential both within a simple continuum model and using numerical tight-binding calculations. The continuu…
Edge States of Bilayer Graphene in the Quantum Hall Regime
Victoria Mazo, Efrat Shimshoni, Herbert A. Fertig
We study the low energy edge states of bilayer graphene in a strong perpendicular magnetic field. Several possible simple boundaries geometries related to zigzag edges are consider…