578 citations · 3k across the 24 of their papers we have counts for
11 papers · 1 filter
Disorder and interaction effects in two dimensional graphene sheets
T. Stauber, F. Guinea, M. A. H. Vozmediano
The interplay between different types of disorder and electron-electron interactions in graphene planes is studied by means of Renormalization Group techniques. The low temperature…
Properties of electrons near a Van Hove singularity
M. A. H. Vozmediano, J. Gonzalez, F. Guinea +2
The Fermi surface of most hole-doped cuprates is close to a Van Hove singularity at the M point. A two-dimensional electronic system, whose Fermi surface is close to a Van Hove sin…
Confinement of electrons in layered metals
Maria A. H. Vozmediano, M. Pilar Lopez Sancho, Francisco Guinea
We analyze the out of plane hopping in models of layered systems where the in--plane properties deviate from Landau's theory of a Fermi liquid. We show that the hopping term acquir…
Electron-electron interactions in graphene sheets
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
The effects of the electron-electron interactions in a graphene layer are investigated. It is shown that short range couplings are irrelevant, and scale towards zero at low energie…
Anisotropic Fermi surfaces and Kohn-Luttinger superconductivity in two dimensions
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
The instabilities induced on a two-dimensional system of correlated electrons by the anisotropies of its Fermi line are analyzed on general grounds. Simple scaling arguments allow…
Kinematics of electrons near a Van Hove singularity
J. Gonzalez, F. Guinea, M. A. H. Vozmediano
A two dimensional electronic system, where the Fermi surface is close to a Van Hove singularity, shows a variety of weak coupling instabilities, and it is a convenient model to stu…