1. M. N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 18 S. Kovalevskaya Street, Yekaterinburg 620137, Russia
2. Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russia
3. Bayerisches Geoinstitut, Universität Bayreuth, Universitätsstrasse 30, D-95447 Bayreuth, Germany
4. Institute for Solid State Chemistry of Ural Branch of Russian Academy of Sciences, 91 Pervomayskaya Street, Yekaterinburg 620219, Russia