1. Department of Micro‐ and Nanoelectronic Belarusian State University of Informatics and Radioelectronics P. Browka 6 Minsk 220013 Belarus
2. Institute of Nanotechnologies in Electronics, Spintronics and Photonics National Research Nuclear University MEPhI Kashirskoe Shosse 31 Moscow 115409 Russia
3. School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore