1. B. I. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Nauki Ave., Kharkov, 61103, Ukraine
2. V.N. Karazin Kharkiv National University 4 Svobody Sq., Kharkov, 61022, Ukraine
3. Kiev Academic University, 36 Vernadsky Blvd. Kiev, 03142, Ukraine