1. Engineering Technology Research Center of Magnetic Materials, School of Physics & Materials Science Anhui University Hefei 230601 P. R. China
2. National University of Science and Technology MISIS Leninskii pr. 4 Moscow 119049 Russia
3. SSPA “Scientific and practical materials research centre of the NAS of Belarus” P. Brovki str.19 Minsk 220072 Belarus
4. South Ural State University 454080, Chelyabinsk Lenin Prospect, 76 Russia