5 citations · 32 across the 20 of their papers we have counts for
3 papers · 1 filter
Magnetic moment formation at a dilute Ce(140) impurity in RCo_2 compounds
A. L. de Oliveira, C. M. Chaves, N. A. de Oliveira +1
A great deal of experimental work using perturbed angular correlation (PAC) has succeed in measuring hyperfine fields in Ce diluted in metallic systems, thus allowing the determina…
Magnetic hyperfine field at \textit{s-p} impurities on Laves phase compounds
C. M. Chaves, A. L. de Oliveira, N. A. de Oliveira +1
Recent experimental results for the magnetic hyperfine field B_{\rm hf} at the nuclei of \textit{s-p} impurities such as Sn in intermetallic Laves phases RM_2 (R = Gd, Tb…
Superconductivity in an extended Hubbard model with attractive interaction
E. J. Calegari, S. G. Magalhaes, C. M. Chaves +1
In this work, a two-dimensional one-band Hubbard model is investigated within a two-pole approximation. The model presents a non-local attractive potential that allows th…