Z. Yu. Bunina State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine; V.N. Karazin Kharkiv National University Ukraine
K. Yu. Bryleva State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine; V.N. Karazin Kharkiv National University Ukraine
O. I. Yurchenko Karazin Kharkiv National University Ukraine
K. M. Belikov State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine; V.N. Karazin Kharkiv National University Ukraine