1. Institute for Nanotechnology Karlsruhe Institute of Technology (KIT) Eggenstein‐Leopoldshafen D‐76344 Germany
2. Department of physics and technology University of Bergen Bergen 5007 Norway
3. Centre for Automotive Energy Materials International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI) Chennai India
4. Karlsruhe Nano Micro Facility Karlsruhe Institute of Technology (KIT) Eggenstein‐Leopoldshafen D‐76344 Germany
5. Department of Materials Engineering Indian Institute of Science C V Raman Avenue Bangalore 560013 India