1. Colombian Society of Engineering Physics (SCIF), Pereira 660003, Colombia
2. Department of Applied Physics, “Gleb Wataghin” Institute of Physics, University of Campinas—UNICAMP, Campinas 13083-970, São Paulo, Brazil
3. Centro de Microelectrónica (CMUA), Departamento de Ingeniería Eléctrica y Electrónica, Universidad de los Andes, Bogotá 111711, Colombia
4. Laboratory of Functional Materials, Institute of Chemistry, University of Campinas—UNICAMP, P.O. Box 6154, Campinas 13083-970, São Paulo, Brazil
5. Department of Experimental Low Energy Physics, Brazilian Center for Research in Physics (CBPF), Rua Dr. Xavier Sigaud 150, Rio de Janeiro 22290-180, Brazil