Affiliation: | 1. Belarusian State University, 4 Nezavisimost’ Ave., Minsk, 220030, Belarus 2. A. N. Sevchenko Institute of Applied Physical Problems, Belarusian State University, Minsk, Belarus 3. Friedrich-Schiller Universitat, Jena, Germany 4. Scientific and Practical Material Research Center, National Academy of Sciences of Belarus, Minsk, Belarus 5. Al-Farabi Kazakh National University, Almaty, Kazakhstan
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