[1] Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Nauky Ave., Kharkiv
[2] B.Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Nauky Ave., Kharkiv
[3] Far Eastern Federal University, 8 Sukhanova Str., Vladivostok
[4] V.Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv