1. Neutron Physics Department Nuclear Physics Institute of the Czech Academy of Sciences Řež Czech Republic
2. Department of Physics, Faculty of Science J.E. Purkinje University Ústí nad Labem Czech Republic
3. Department of Inorganic Chemistry University of Chemistry and Technology Prague Czech Republic
4. Department of Solid State Engineering University of Chemistry and Technology Prague Czech Republic
5. Department of Low‐Temperature Physics, Faculty of Mathematics and Physics Charles University Prague Czech Republic