1. CNR‐NANO Istituto Nanoscienze Centro S3 Modena I‐41125 Italy
2. Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus Bellaterra Barcelona 8193 Spain
3. University of Modena and Reggio Emilia DIEF Via P. Vivarelli, 10 Modena MO 41125 Italy
4. imec Kapeldreef 75 Leuven B‐3001 Belgium
5. AMAT – Applied Materials Italia Via Meuccio Ruini 74L Reggio Emilia Italy