1. I. Institute of Physics (IA)RWTH Aachen University 52056 Aachen Germany
2. Ernst Ruska‐Centre for Microscopy and Spectroscopy with Electrons (ER‐C)Forschungszentrum Jülich GmbH 52428 Jülich Germany
3. Chair of Solid‐State and Quantum ChemistryRWTH Aachen University 52056 Aachen Germany
4. Central Facility for Electron MicroscopyRWTH Aachen University 52056 Aachen Germany
5. Jülich‐Aachen Research Alliance (JARA FIT and JARA CSD)RWTH Aachen University 52056 Aachen Germany
6. Hoffmann Institute of Advanced MaterialsShenzhen Polytechnic 7098 Liuxian Blvd, Nanshan District 518055 Shenzhen China
7. JARA‐Institute: Energy‐Efficient Information Technology (PGI‐10)RWTH Aachen University and Forschungszentrum Jülich 52428 Jülich Germany