1. Fraunhofer IAF, Fraunhofer Institute for Applied Solid State Physics, 79108 Freiburg, Germany
2. Fraunhofer IMWS, Fraunhofer Institute Microstructure of Materials and Systems, 06120 Halle, Germany
3. Fraunhofer IWM, Fraunhofer Institute for Mechanics of Materials, 79108 Freiburg, Germany
4. Fraunhofer IST, Fraunhofer Institute for Surface Engineering and Thin Films, 38108 Braunschweig, Germany