1. Department of Industrial and Information Engineering and Economics, University of L’Aquila, P. Pontieri, 1 Monteluco di Roio, 67100 L’Aquila, Italy
2. UdR INSTM of L’Aquila. 67100 L’Aquila, Italy
3. 2D Lab, Department of Physical and Chemical Sciences (DSFC), University of L’Aquila, Via Vetoio, 67100 L’Aquila, Italy
4. Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
5. Advanced Materials Center, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
6. CNR SPIN Unit of L’Aquila. 67100 L’Aquila, Italy