1. Institute of Inorganic Chemistry and Crystallography University of Bremen Bremen Germany
2. MAPEX Center for Materials and Processes University of Bremen Bremen Germany
3. Laboratorio de Sólidos Amorfos‐INTECIN University of Buenos Aires Buenos Aires Argentina
4. Institute für Anorganische und Analytische Chemie Universität Münster Münster Germany
5. Department of Physics, Chemistry and Pharmacy University of Southern Danmark Odense Denmark