1. Technological Institute for Superhard and Novel Carbon Materials Troitsk Moscow 108840 Russia
2. PN Lebedev Physical Institute Russian Academy of Sciences Moscow 119991 Russia
3. AV Topchiev Institute of Petrochemical Synthesis Russian Academy of Sciences Moscow 119991 Russia
4. Institute of Spectroscopy Russian Academy of Sciences Troitsk Moscow 108840 Russia
5. Valiev Institute of Physics and Technology Russian Academy of Sciences Moscow 117218 Russia
6. Ioffe Institute Russian Academy of Sciences St. Petersburg 194021 Russia