1. Siberian Branch of Russian Academy of Sciences, Nikolaev Institute of Inorganic Chemistry, 3 Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia
2. Siberian Branch of Russian Academy of Sciences, Sobolev Institute of Geology and Minerology, 3 Acad. Koptyug Avenue, Novosibirsk 630090, Russia
3. Institut für Festkörper- und Materialphysik, Technische Universität Dresden, Dresden 01069, Germany