1. Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
2. Fraunhofer Institute for Electronic Nano Systems ENAS, Technologie-Campus 3, 09126 Chemnitz, Germany
3. Center for Microtechnologies, TU Chemnitz, Reichenhainer Straße 70, 09107 Chemnitz, Germany
4. Material Systems for Nanoelectronics, TU Chemnitz, Reichenhainer Straße 70, 09107 Chemnitz, Germany