Affiliation: | 1. Donetsk Physical & Technical Institute of the National Academy of Sciences of Ukraine, 72, R. Luxemburg Str., 83114 Donetsk, Ukraine;2. Department of Physics and Technology, Donetsk National University, 13, Teatralny Ave., 83001 Donetsk, Ukraine;3. q-psi and Department of Physics, Hanyang University, 17 Haendang-Dong, Sundong-Ku, Seoul 133-791, Republic of Korea;4. Radboud University of Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands |