1. Ioffe Institute, 26 Politekhnicheskaya Str., St. Petersburg 194021, Russia
2. Department of Micro- and Nanoelectronics, St. Petersburg Electrotechnical University, 5 Professora Popova Str., St. Petersburg 197376, Russia
3. A-Modelling Solutions Ltd., 11 Forster Road, Guildford GU2 9AE, United Kingdom