1. Department of Physics of University of Minho Campus of Gualtar Physics Center of Minho and Porto Universities (CF‐UM‐UP) Campus of Gualtar 4710-057 Braga Portugal
2. Group of Theory of Quantum Nanostructures International Iberian Nanotechnology Laboratory (INL) Av. Mestre José Veiga 4715-330 Braga Portugal
3. Departamento de Fsica Instituto Tecnológico de Aeronáutica Campus do CTA 12228900 São José dos Campos SP Brazil
4. Instituto de Física Universidade Federal de Mato Grosso 78060-900 Cuiabá Mato Grosso Brazil