1. Institute of PhysicsChemnitz University of Technology Reichenhainer Str. 70 09126 Chemnitz Germany
2. Center for Advancing Electronics Dresden (cfaed)Chemnitz University of Technology Reichenhainer Str. 70 09126 Chemnitz Germany
3. Center for MictotechnologiesChemnitz University of Technology Reichenhainer Str. 70 09126 Chemnitz Germany
4. Fraunhofer Institute for Electronic Nano Systems ENAS Technologie-Campus 3 09126 Chemnitz Germany
5. Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 400 01328 Dresden Germany