1. Zavoisky Physical-Technical Institute Russian Academy of Sciences Kazan 420029 Russia
2. Institute of Physics Kazan Federal University Kazan 420008 Russia
3. Ginzburg Center for High Temperature Superconductivity and Quantum Materials P.N. Lebedev Physical Institute of the RAS Moscow 119991 Russia
4. Institute of Experimental Mineralogy Russian Academy of Sciences Chernogolovka Moscow region 142432 Russia
5. Institute of Physics and Technology Ural Federal University Yekaterinburg 620002 Russia
6. Low Temperature Physics and Superconductivity Department M.V. Lomonosov Moscow State University Moscow 119991 Russia