1. IEHK Institute RWTH Aachen University Intzestraße 1 52072 Aachen Germany
2. HTWG Konstanz - University of Applied Sciences Institute for Materials System Technology Thurga Alfred-Wachtel-Str. 8 78462 Konstanz Germany
3. GfE Central Facility for Electron Microscopy RWTH Aachen University Ahornstraße 55 52074 Aachen Germany