21 citations · 41 across the 3 of their papers we have counts for
3 papers
cond-mat.mes-hall2014★ 5 cited
Dielectric mismatch and shallow donor impurities in GaN/HfO2 quantum wells
T. A. S. Pereira, A. A. Sousa, M. H. Degani +1
In this work we investigate electron-impurity binding energy in GaN/HfO quantum wells. The calculation considers simultaneously all energy contributions caused by the dielectri…
cond-mat.mes-hall2013★ 21 cited
Braess paradox at the mesoscopic scale
A. A. Sousa, Andrey Chaves, G. A. Farias +1
We theoretically demonstrate that the transport inefficiency recently found experimentally for branched-out mesoscopic networks can also be observed in a quantum ring of finite wid…
cond-mat.mes-hall2012★ 15 cited
Interfacial confinement in core-shell nanowires due to high dielectric mismatch
A. A. Sousa, T. A. S. Pereira, A. Chaves +2
We theoretically investigate the role of the dielectric mismatch between materials on the energy levels and recombination energies of a core-shell nanowire. Our results demonstrate…