1. Institute of Solid State Physics; University of Latvia; Kengaraga street 8 LV-1063 Riga Latvia
2. Department Chemie; Naturwissenschaftliche Fakultät; Universität Paderborn; Warburger Straße 100 33098 Paderborn Germany
3. Department of Materials Science and Chemical Engineering; Stony Brook University; NY 11794 USA
4. Synchrotron SOLEIL; l'Orme des Merisiers; Saint-Aubin BP48, F-91192 Gif Sur Yvette France
5. Geodynamics Research Center; Ehime University; 2-5 Bunkyo-cho Matsuyama Ehime 790-8577 Japan