1. Institute of Physics, Kazan Federal University420008 KazanRussia
2. Centre for Quantum Technologies, Kazan Federal University420008 KazanRussia
3. Zavoisky Physical‐Technical Institute, FRC Kazan Scientific Center of RAS420029 KazanRussia
4. Experimental Physics V, Center for Electronic Correlations and Magnetism, University of AugsburgD‐86135 AugsburgGermany
5. Institute of Applied PhysicsMD‐20208 ChisinauMoldova