1. Ion Implantation Laboratory, Institute of Physics Federal University of Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
2. Graduate Program on Materials Science Federal University of Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
3. Institute of Nanotechnology, Karlsruhe Institute of Technology Hermann‐von‐Helmholtz‐Platz 1 Eggenstein‐Leopoldshafen Germany
4. 3DMM2O‐Cluster of Excellence (EXC‐2082/1‐390761711) Karlsruhe Institute of Technology (KIT) Karlsruhe Germany