1. Institut für Werkstoffe der Elektrotechnik 2 & JARA-FIT
2. RWTH Aachen University
3. 52056 Aachen
4. Germany
5. Central Facility for Electron Microscopy & JARA-FIT
6. 52074 Aachen
7. Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C)& JARA-FIT
8. Peter Gruenberg Institute & JARA-FIT