1. Technological Institute for Superhard and Novel Carbon Materials, 7a Centralnaya Street, Troitsk, Moscow 142190, Russian Federation
2. Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russian Federation
3. Emanuel Institute of Biochemical Physics, 4 Kosigina Street, Moscow 119334, Russian Federation
4. National University of Science and Technology MISiS, 4 Leninskiy Prospekt, Moscow 119049, Russian Federation
5. Physics
and Astronomy Department, Michigan State University, East Lansing, Michigan 48824, United States