4.8k citations · 54.9k across the 353 of their papers we have counts for
11 papers · 1 filter
The tunneling density-of-states of interacting massless Dirac fermions
A. Principi, Marco Polini, Reza Asgari +1
We calculate the tunneling density-of-states (DOS) of a disorder-free two-dimensional interacting electron system with a massless-Dirac band Hamiltonian. The DOS exhibits two main…
Persistent Current States in Bilayer Graphene
Jeil Jung, Marco Polini, Allan H. MacDonald
We argue that at finite carrier density and large displacement fields, bilayer graphene is prone to and Pomeranchuk Fermi surface instabilities. The broken sym…
Quantum Hall Effects in Graphene-Based Two-Dimensional Electron Systems
Yafis Barlas, Kun Yang, A. H. MacDonald
In this article we review the quantum Hall physics of graphene based two-dimensional electron systems, with a special focus on recent experimental and theoretical developments. We…
Electronic Highways in Bilayer Graphene
Zhenhua Qiao, Jeil Jung, Qian Niu +1
Bilayer graphene with an interlayer potential difference has an energy gap and, when the potential difference varies spatially, topologically protected one-dimensional states local…
Effective screening and the plasmaron bands in Graphene
Andrew L. Walter, Aaron Bostwick, Ki-Joon Jeon +10
Electron-plasmon coupling in graphene has recently been shown to give rise to a "plasmaron" quasiparticle excitation. The strength of this coupling has been predicted to depend on…
Universal Quenching of Superconductivity in Two-dimensional Nano-islands
Jungdae Kim, Gregory A. Fiete, Hyoungdo Nam +2
We systematically address superconductivity of Pb nano-islands with different thicknesses and lateral sizes via a scanning tunneling microscopy/spectroscopy. Reduction of the super…
Valley-Hall Kink and Edge States in Multilayer Graphene
Jeil Jung, Fan Zhang, Zhenhua Qiao +1
We report on a theoretical study of one-dimensional (1D) states localized at few-layer graphene system ribbon edges, and at interfaces between few-layer graphene systems with diffe…
A Quantum Theory of Cold Bosonic Atoms in Optical Lattices
Dagim Tilahun, R. A. Duine, A. H. MacDonald
Ultracold atoms in optical lattices undergo a quantum phase transition from a superfluid to a Mott insulator as the lattice potential depth is increased. We describe an approximate…
Enhancement of non-local exchange near isolated band-crossings in graphene
Jeil Jung, Allan H. MacDonald
The physics of non-local exchange interactions in graphene sheets is studied within a -orbital tight-binding model using a Hartree-Fock approximation and Coulomb interactions mo…
Drude weight, plasmon dispersion, and a.c. conductivity in doped graphene sheets
Saeed H. Abedinpour, G. Vignale, A. Principi +3
We demonstrate that the plasmon frequency and Drude weight of the electron liquid in a doped graphene sheet are strongly renormalized by electron-electron interactions even in the…
Landau Levels and Band Bending in Few-Layer Epitaxial Graphene
Hongki Min, S. Adam, Young Jae Song +3
The carrier density distributions in few-layer-graphene systems grown on the carbon face of silicon carbide can be altered by the presence of a scanning tunneling microscope (STM)…