1. Institute of Semiconductor Nanoelectronics, Peter Grünberg Institute 9 (PGI 9) and JARA-Fundamentals of Future Information Technologies, Forschungszentrum Jülich, 52428 Jülich,Germany
2. Institute of Semiconductor Electronics, RWTH Aachen University, 52056 Aachen, Germany
3. University of Grenoble Alpes, F-38000 Grenoble, France
4. CEA, LETI, MINATEC Campus, F-38054 Grenoble, France
5. Pollard Institute, School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, U.K.
6. IHP-Leibniz-Institut für Innovative Mikroelektronik, Frankfurt (Oder) 15236, Germany