1. Institute for Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, D-76131 Karlsruhe, Germany
2. Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserstraße 7, D-76131 Karlsruhe, Germany
3. Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology (KIT), P.O. 3640, D-76021 Karlsruhe, Germany
4. Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology (KIT), P.O. 3640, D-76021 Karlsruhe, Germany