1. STMicroelectronics, 850 rue Jean Monnet, BP 16, 38926 Crolles, France
2. Univ. Grenoble Alpes, F-38000 Grenoble, France and CEA, LETI, MINATEC Campus, F-38054 Grenoble, France
3. CNRS-C2N, Route de Nozay, 91460 Marcoussis, France
4. MTA EK MFA, Konkoly Thege M. u. 29-33, H-1121 Budapest, Hungary
5. Centre de Nanosciences et de Nanotechnologies, CNRS, Univ. Paris-Sud, Université Paris-Saclay, C2N-Marcoussis, 91460 Marcoussis, France