4 papers
Anisotropic transport in the overdoped High-Tc superconductors within the Van Hove scenario
Belen Valenzuela, Maria A. H. Vozmediano
Recent Raman experiments [F. Venturini et al., Phys. Rev. Lett. {\bf 89}, 107003-1,(2002)] done in have found that antinodal quasiparticles become insulatin…
Incipient quantum melting of the one-dimensional Wigner lattice
S. Fratini, B. Valenzuela, D. Baeriswyl
A one--dimensional tight--binding model of electrons with long--range Coulomb interactions is studied in the limit where double site occupancy is forbidden and the Coulomb coupling…
Variational Wave Function for Generalized Wigner Lattices in One Dimension
S. Fratini, B. Valenzuela, D. Baeriswyl
We study a system of electrons on a one-dimensional lattice, interacting through the long range Coulomb forces, by means of a variational technique which is the strong coupling ana…
The magnetism of the t-t' Hubbard model
B. Valenzuela, M. A. H. Vozmediano, F. Guinea
The magnetic properties of the t-t' Hubbard Model in the two dimensional square lattice are studied within an unrestricted Hartree-Fock approximation in real space. The interplay b…