62 citations · 537 across the 37 of their papers we have counts for
4 papers · 1 filter
On weak vs. strong universality in the two-dimensional random-bond Ising ferromagnet
F. D. A. Aarão Reis, S. L. A. de Queiroz, Raimundo R. dos Santos
We address the issue of universality in two-dimensional disordered Ising systems, by considering long, finite-width strips of ferromagnetic Ising spins with randomly distributed co…
Bond-charge Interaction in the extended Hubbard chain
Daisy M. Luz, Raimundo R. dos Santos
We study the effects of bond-charge interaction (or correlated hopping) on the properties of the extended ({\it i.e.,} with both on-site () and nearest-neighbor () repulsions…
Magnetism and Pairing in Hubbard Bilayers.
Raimundo R dos Santos
We study the Hubbard model on a bilayer with repulsive on-site interactions, , in which fermions undergo both intra-plane () and inter-plane () hopping. This situation i…
Ising Spin Glass in a Transverse Magnetic Field
Beatriz Boechat, Raimundo R. dos Santos, M. A. Continentino
We study the three-dimensional quantum Ising spin glass in a transverse magnetic field following the evolution of the bond probability distribution under Renormalisation Group tran…