1. Department of Electronics and Telecommunications, Politecnico di Torino, Torino, Italy
2. Nanolab, Advanced Technology Laboratory, ECE – Tufts University, Medford, MA, USA
3. Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy
4. Advanced Research Center on Electronic Systems (ARCES), University of Bologna, Bologna, Italy
5. CEMSE, King Abdullah University of Science and Technology (KAUST), Saudi Arabia