1. Institute of Nanotechnology Karlsruhe Institute of Technology Eggenstein‐Leopoldshafen 76344 Germany
2. Saint Petersburg State University St. Petersburg 199034 Russia
3. Institute of Molecule and Crystal Physics Ufa Federal Research Center RAS Ufa 450075 Russia
4. Institute of Physics of Advanced Materials Ufa State Aviation Technical University Ufa 450008 Russia
5. Joint Research Laboratory Nanomaterials Technische Universität Darmstadt Darmstadt 64206 Germany
6. Karlsruhe Nano Micro Facility Karlsruhe Institute of Technology Eggenstein‐Leopoldshafen 76344 Germany