12 citations · 20 across the 4 of their papers we have counts for
4 papers
Dynamical resilience to disorder: the dilute Hubbard model on the Lieb lattice
L. Oliveira-Lima, N. C. Costa, J. Pimentel de Lima +2
In itinerant systems, electron-electron interactions may lead to the formation of local magnetic moments and their effective exchange coupling, which in turn gives rise to long-ran…
Higher order self-dual models for spin-3 particles in
D. Dalmazi, A. L. R. dos Santos, R. R. Lino dos Santos
In dimensions, elementary particles of a given helicity can be described by local Lagrangians (parity singlets). By means of a "soldering" procedure two opposite helicities…
On the nature of ferromagnetism in Ga_{1-x}Mn_xAs semiconductors
A. J. R. da Silva, A. Fazzio, R. R. dos Santos +1
We have performed ab initio calculations within the density-functional theory for Ga_{1-x}Mn_xAs diluted semiconductors. Total energy results unambiguously show that a quasi-locali…
Superconductivity Induced by Negative Centers
G. Litak, T. Paiva, R. T. Scalettar +2
We study the effect of random dilution of attraction centers on electron pairing in a generalization of the negative Hubbard model where the interaction , defined on the t…