1. Helmholtz Institute Ulm (HIU) Helmholtzstrasse 11 Ulm 89081 Germany
2. Karlsruhe Institute of Technology (KIT) P.O. Box 3640 Karlsruhe 76021 Germany
3. CEA Saclay IRAMIS, NIMBE, UMR 3685 Univ. Paris Saclay Gif Sur Yvette 91191 France
4. CNRS, UMR 7252, XLIM Univ. Limoges Limoges 87000 France
5. Central Facility for Electron Microscopy Ulm University Ulm 89081 Germany