1. Sobolev Institute of Geology and Mineralogy, Siberian
Branch of Russian Academy of Sciences, prosp. acad. Koptyuga 3, 630090 Novosibirsk, Russia
2. Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russia
3. Department of Physics, AlbaNova University Center, Royal Institute of Technology (KTH), 10691 Stockholm, Sweden
4. National Research University Higher School of Economics, 123458 Moscow, Russia
5. Vereshchagin Institute for High Pressure Physics RAS, Troitsk, 108840 Moscow, Russian Federation