1. Institute of Solid State Physics, TU Wien, A-1040 Vienna, Austria
2. Institute of Materials Chemistry and Research, University of Vienna, A-1090 Vienna, Austria
3. Institute for Chemical
Technologies and Analytics, TU Wien, A-1040 Vienna, Austria
4. University Service Center for TEM (USTEM), TU Wien, A-1040 Vienna, Austria
5. Institute of Mineralogy and Crystallography, University of Vienna, A-1090 Vienna, Austria