Emtsev V.V.1, Abrosimov N.V.2, Kozlovski V.V.3, Lastovskii S.B.4, Oganesyan G.A.1, Poloskin D.S.1, Aref'ev A.A.5
1Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia
2Leibniz-Institut fur Kristallzuchtung (IKZ), Berlin, Germany
3Peter the Great St. Petersburg Polytechnic University (SPbPU), St. Petersburg, Russia
4Scientific-Practical Materials Research Center of NAS of Belarus, Minsk, Belarus
5Saint Petersburg Electrotechnical University "LETI", St. Petersburg, Russia
