1. University of Brasília, Institute of Physics, Brasília, Federal District, Brazil
2. Computational Materials Laboratory, LCCMat, Institute of Physics, University of Brasília, Brasília, Federal District, Brazil
3. Professional Postgraduate Program in Electrical Engineering (PPEE), Department of Electrical Engineering, College of Technology, University of Brasília, Brasília, Federal District, Brazil
4. Department of Electrical Engineering, University of Brasília, Brasilia, Federal District, Brazil