1. Institute of Inorganic Chemistry, Slovak Academy of Sciences, 845 36 Bratislava, Slovakia
2. Centre of Excellence for Advanced Materials Application - CEMEA, Slovak Academy of Sciences, Dúbravská cesta 5807/9, 845 11 Bratislava, Slovakia
3. Conditions Extrêmes ét Matériaux: Haute Température et Irradiation, CEMHTI, UPR 3079 -CNRS Univ. Orléans 450 71, Orléans, France
4. Material and Chemical Sciences, Canadian Light Source, Saskatoon, Saskatchewan S7N 2V3, Canada
5. Loire Valley Institute for Advanced Studies, 1 Rue Dupanloup, 45000 Orléans, France