110 citations · 215 across the 5 of their papers we have counts for
10 papers · 1 filter
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…
Phase diagram for quantum Hall states in graphene
Jianhui Wang, A. Iyengar, H. A. Fertig +1
We investigate integer and half-integer filling states (uniform and unidimensional stripe states respectively) for graphene using the Hartree-Fock approximation. For fixed filling…
Vacancy induced magnetism in graphene and graphene ribbons
J. J. Palacios, J. Fernandez-Rossier, L. Brey
We address the electronic structure and magnetic properties of vacancies and voids both in graphene and graphene ribbons. Using a mean field Hubbard model, we study the appearance…
Exchange induced charge inhomogeneities in rippled neutral graphene
L. Brey, J. J. Palacios
A new mechanism that induces charge density variations in corrugated graphene is proposed. Here it is shown how the interplay between lattice deformations and exchange interactions…
Diluted Graphene Antiferromagnet
L. Brey, H. A. Fertig, S. Das Sarma
We study RKKY interactions between local magnetic moments for both doped and undoped graphene. We find in both cases that the interactions are primarily ferromagnetic for moments o…
Electronic Structure of gated graphene and graphene ribbons
J. Fernandez-Rossier, J. J. Palacios, L. Brey
We study the electronic structure of gated graphene sheets. We consider both infinite graphene and finite width ribbons. The effect of Coulomb interactions between the electrically…