17 citations · 17 across the 1 of their papers we have counts for
11 papers
Hall conductivity as bulk signature of topological transitions in superconductors
Pedro D. Sacramento, Miguel A. N. Araújo, Eduardo V. Castro
Topological superconductors may undergo transitions between phases with different topological numbers which, like the case of topological insulators, are related to the presence of…
Supercurrent induced domain wall motion
P. D. Sacramento, L. C. Fernandes Silva, G. S. Nunes +2
We study the dynamics of a magnetic domain wall, inserted in, or juxtaposed to, a conventional superconductor, via the passage of a spin polarized current through a FSF junction. S…
Anomalous Hall effect in superconductors with spin-orbit interaction
P. D. Sacramento, M. A. N. Araujo, V. R. Vieira +2
We calculate the anomalous Hall conductance of superconductors with spin-orbit interaction and with either uniform or local magnetization. In the first case we consider a uniform f…
Fermi surfaces of iron-pnictide high-Tc superconductors from the limit of local magnetic moments
J. P. Rodriguez, M. A. N. Araujo, P. D. Sacramento
A 2-orbital t-J model over the square lattice that describes low-energy electronic excitations in iron-pnictide high-Tc superconductors is analyzed with Schwinger-boson-slave-fermi…
Enhancement of the critical temperature in iron-pnictide superconductors by finite size effects
M. A. N. Araújo, Antonio M. García-García, P. D. Sacramento
Recent experiments have shown that, in agreement with previous theoretical predictions, superconductivity in metallic nanostructures can be enhanced with respect to the bulk limit.…
Theory of Andreev reflection in a two-orbital model of iron-pnictide superconductors
M. A. N. Araujo, P. D. Sacramento
A recently developed theory for the problem of Andreev reflection between a normal metal (N) and a multiband superconductor (MBS) assumes that the incident wave from the normal met…