1. Namlab gGmbH, Noethnitzer Strasse 64a, 01187 Dresden, Germany
2. Analytical Instrumentation Facility, North Carolina State University, 27695 Raleigh, North Carolina, United States
3. Department of Materials Science and Engineering, North Carolina State University, 27695 Raleigh, North Carolina, United States
4. Hochschule München, Lothstr. 34, 80335 München, Germany
5. Chair of Nanoelectronic Materials, TU Dresden, Noethnitzer Strasse 64, 01062 Dresden, Germany